library management system

92
import javax.swing.*; import java.awt.*; import java.awt.event.*; import javax.swing.table.*; import java.sql.*; import java.util.*; public class MyLibrarian { static JFrame fr2,fr3,fr4,fr5,fr6,fr7,fr8,fr9,fr10,fr11,fr12,fr13,fr14; static JPanel p2,p3,p4,p5,p6,p7,p8,p9,p10,p11,p12,p13,p14; JButton LOGIN=new JButton("LOGIN"); JButton ADD,AddNewBook,DELETE,DelOldBook,ADDNEWUSER,AddThisUser,DELEXISTU SER,DelThisUser,CHANGEPW; JButton MARKEOI,CHANGEMYPW,QUERY,RUNQUERY,REPORT,ISSUE_BOOK,ADD_BORROWER, AddThisBorrower; JButton CLOSE_BORROWER,CloseThisBorrower,VIEW_REC,MODIFY_REC,showItButton ; JLabel jLabel, jLabel1, jLabel2,l1,l2,l3,l4,l5,l6,l7,l8,l9,l10; JTextField section,bookname,author,price,availcode,currentborrower,serno,bon ame,boaddress; JTextField bophoneno,borrowerNewMagazine,borrowerPhoneNo,borrowerLastMagazin e; JPasswordField loginname,loginpass,oldpw,newpw,newpwc; JTextField username,password,Designation,loginpassback,usrname,fboserial; JTextField borrowerSerialno,borrowerName,borrowerAddress,borrowerLastBook,bo rrowerStatus;

Upload: saint-columban-college

Post on 09-Aug-2015

17 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: Library management system

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

import javax.swing.table.*;

import java.sql.*;

import java.util.*;

public class MyLibrarian

{

static JFrame

fr2,fr3,fr4,fr5,fr6,fr7,fr8,fr9,fr10,fr11,fr12,fr13,fr14;

static JPanel p2,p3,p4,p5,p6,p7,p8,p9,p10,p11,p12,p13,p14;

JButton LOGIN=new JButton("LOGIN");

JButton

ADD

,AddNewBook,DELETE,DelOldBook,ADDNEWUSER,AddThisUser,DELEXISTUSER

,DelThisUser,CHANGEPW;

JButton

MARKEOI,CHANGEMYPW,QUERY,RUNQUERY,REPORT,ISSUE_BOOK,ADD_BORROWER

,AddThisBorrower;

JButton

CLOSE_BORROWER

,CloseThisBorrower,VIEW_REC,MODIFY_REC,showItButton;

JLabel jLabel, jLabel1, jLabel2,l1,l2,l3,l4,l5,l6,l7,l8,l9,l10;

JTextField

section,bookname,author,price,availcode,currentborrower,serno,bon

ame,boaddress;

JTextField

bophoneno,borrowerNewMagazine,borrowerPhoneNo,borrowerLastMagazin

e;

JPasswordField loginname,loginpass,oldpw,newpw,newpwc;

JTextField

username,password,Designation,loginpassback,usrname,fboserial;

JTextField

borrowerSerialno,borrowerName,borrowerAddress,borrowerLastBook,bo

Page 2: Library management system

rrowerStatus;

JTextField borrowerNewBook;

//JTextField loginname = new JTextField(20);

//JTextField loginpass = new JTextField(20);

GridBagLayout gridbag = new GridBagLayout();

GridBagConstraints c = new GridBagConstraints();

String t1;

String url="jdbc:odbc:BANK";

String driver="sun.jdbc.odbc.JdbcOdbcDriver";

String

sql,sq,sqUsr,sbookd,sdUsr,squpdate,dialogmessage,serialno,squpdat

e_book,squpdate_mag;

int dialogtype = JOptionPane.PLAIN_MESSAGE;

String dialogs = "SUCCESS";

String dialogf = "FAILURE";

String dialogd = "DELETION OK ?";

String dialogw = "WARNING !!!";

DefaultTableModel defaulttablemodel = new DefaultTableModel();

boolean DelFlag,AddFlag,DelUsrFlag,AddUsrFlag;

Font dataFont = new Font("times new roman",Font.PLAIN,15);

String loginnameback;

//GregorianCalendar gCal;

//Following is required for running a query on database.

JCheckBox jCheckboxq1, jCheckboxq2, jCheckboxq3, jCheckboxq4,

jCheckboxq5;

CheckBoxListener myListener = new CheckBoxListener();

JRadioButton jRadiobuttonq1, jRadiobuttonq2;

ActionListener rlistener = new RadioListener();

ButtonGroup bgq = new ButtonGroup();

GridBagConstraints c5 = new GridBagConstraints();

JComboBox jComboboxq1, jComboboxq2;

ComboBoxListener cbListener = new ComboBoxListener();

JTextField givencondition;

JTextArea resultArea;

Page 3: Library management system

JLabel jLabelq1, jLabelq2;

int

SerialNoSe

l=0,BookNameSel=0,AuthorSel=0,PriceSel=0,CurrentBorrowerSel=0;

String Combo1sel="SerialNo", Combo2sel="=";

String sr;

String condsel="No Condition";

String qry = "";

//Following is required for Book Reports

Object[] data = new Object[5];

//DefaultTableModel defaulttablemodel = new DefaultTableModel();

JTable jtable = new JTable(defaulttablemodel);

String tempname = "";

int tempcnt;

//Following is required to generate proper message

String msgsel1="Are You Sure?";

String msgesel2;

int n;

JFrame frame;

public static void main(String[] args)

{

MyLibrarian c1=new MyLibrarian();

}

public MyLibrarian()

{

//setupMenuBar();

login();

}

void login()

{

fr2=new JFrame("Login Panel MyLibrarian v1.0");

Page 4: Library management system

     fr2.setVisible(true);

fr2.setSize(600,300);

fr2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

p2=new JPanel();

p2.setLayout(gridbag);

p2.setBorder

(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorde

r(),"Login Panel"));

    

jLabel1 = new JLabel("Enter Username : ");

jLabel1.setFont(dataFont);

                //c.weighty = 0.0;     //Vertical Space

c.ipady = 1;         //Height of

Component

c.ipadx = 1;  

//Width of Component

        c.anchor = GridBagConstraints.WEST;

      c.gridwidth =1;     //1 columns wide

        c.gridx = 0;         //aligned

with button 0  -- Very Important

  

        c.gridy = 0;         //0th Row 

-- Very Important

// Add all these features to this

Label "jLabel1"

        gridbag.setConstraints(jLabel1, c);

                    p2.add(jLabel1);

loginname = new JPasswordField(10);

    loginname.setEchoChar('*');

         c.ipady = 1;      

c.ipadx = 1;      

Page 5: Library management system

        //c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       c.gridwidth = 2;  

        c.gridx = 1;      

   

        c.gridy = 0;      

        gridbag.setConstraints(loginname, c);

p2.add(loginname);

    jLabel2 = new JLabel("Enter Password : ");

jLabel2.setFont(dataFont);

    c.ipady = 1;      

c.ipadx = 1;      

        //c.weighty = 0.0;  

        //c.anchor = GridBagConstraints.WEST;

        //c.gridwidth = 1;  

        c.gridx = 0;      

    

        c.gridy = 1;      

        gridbag.setConstraints(jLabel2, c);

     p2.add(jLabel2);

loginpass = new JPasswordField(10);

loginpassback = loginpass;

loginpass.setEchoChar('*');

    c.ipady = 1;      

c.ipadx = 1;      

        //c.weighty = 0.0;  

        //c.anchor = GridBagConstraints.WEST;

       //c.gridwidth = 2;  

        c.gridx = 1;      

    

        c.gridy = 1;      

        gridbag.setConstraints(loginpass, c);

        p2.add(loginpass);

Page 6: Library management system

LOGIN = new JButton("LOGIN");

        c.ipady = 1;      

c.ipadx = 1;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.CENTER;

       

c.gridwidth = 0;  

        c.gridx =0;      

     

        c.gridy =4;      

        gridbag.setConstraints(LOGIN, c);

        p2.add(LOGIN);

LOGIN.addActionListener(new

ButtonHandler()); 

     fr2.getContentPane().add(p2);

JFrame.setDefaultLookAndFeelDecorated(true);

}

class ButtonHandler implements ActionListener

{

  public void actionPerformed(ActionEvent ev)

{

   String s=ev.getActionCommand();

//see which button is click accordingly

call its method

if(s=="LOGIN")

{

// call method getaccess();

getaccess();

Page 7: Library management system

else if(s=="ADD NEW BOOK")

{

addnewbook();

}

else if(s=="ADD THIS BOOK")

{

AddFlag=true;

LIBCONFIRM();

}

else if(s=="DELETE EXISTING BOOK")

{

deloldbook();

}

else if(s=="DELETE THIS BOOK")

{

DelFlag=true;

LIBCONFIRM();

}

else if(s=="ADD NEW USER")

{

addnewuser();

}

else if (s=="ADD THIS USER")

{

   AddUsrFlag=true;

   USRCONFIRM();

}

else if(s=="DELETE EXISTING USER")

{

delexistuser();

Page 8: Library management system

}

else if(s=="DELETE THIS USER")

{

DelUsrFlag=true;

USRCONFIRM();

}

else if(s=="CHANGE PASSWORD")

{

CHPW();

}

else if(s=="CHANGE MY PASSWORD")

{

PWCHG();

}

else if(s=="RUN QUERY")

{

QueryBuilder();

}

else if(s=="RUN THIS QUERY")

{

handleQuery();

}

else if(s=="REPORTS")

{

BookReports();

}

else if(s=="ADD NEW BORROWER")

Page 9: Library management system

{

addnewborrower();

}

else if(s=="ADD THIS BORROWER")

{

BORROWER_ADD();

}

else if (s=="ISSUE BOOK")

{

ISSUE_BOOK();

}

else if (s=="VIEW")

{

ExtractBookRecord();

}

else if (s=="MODIFY")

{

UpdateBorrowerRecord();

}

}

}

    void getaccess()

{

  try

  {   

String var1 = 

loginname.getText();

   var1 =  var1.trim();

loginnameback = var1;

Page 10: Library management system

String var2 = 

loginpass.getText();

   var2 =  var2.trim();

      sql = "SELECT * FROM login WHERE username='"+var1+"' AND

password='"+var2+"'";

  Class.forName(driver);

  Connection connection=DriverManager.getConnection(url);

  Statement statement = connection.createStatement();

  boolean hasResults = statement.execute(sql);

  if(hasResults)

{

    ResultSet result =

statement.getResultSet();

if(result!=null)

{

displayResults(result);

   }

connection.close();

  }

  }

  catch(Exception ex)

  {

  }

}

void displayResults(ResultSet r) throws SQLException

{

  ResultSetMetaData rmeta =

r.getMetaData();

//Get Metadata from resultset

int foundrec = 0;

  int numColumns=rmeta.getColumnCount(); 

Page 11: Library management system

while(r.next())

{

String param3 =

r.getString(3).trim();

// 3rd field in the table

'login' , database 'bank.mdb'

if

(param3.equals("Accounts"))

{

// for login 'a' ,

password 'a' , if his deparment is "Accounts"

    // u found record , so

set foundrecord = 1

foundrec = 1;

showAccountloginsuccess();

}

else

if(param3.equals("Main"))

{

// for login 'm' ,

password 'm' , if his deparment is "Main"

// u found record ,

so set foundrecord = 1

foundrec = 1;

showMainloginsuccess();

}

  }

if(foundrec==0)

{

//if foundrecord is zero ,

invalid login

dialogmessage = "Please Re-

Login";

dialogtype =

Page 12: Library management system

JOptionPane.WARNING_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogw, dialogtype);

//make login and password

textboxes empty

loginname.setText("");

loginpass.setText("");

}

}

void showAccountloginsuccess()

{

//fr2.setVisible(false);

dialogmessage = "Login Succssful !!!";

dialogtype = JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component)

null, dialogmessage, dialogs, dialogtype);

loginname.setText("");

loginpass.setText("");

    showAccountprograms();

}

void showMainloginsuccess()

{

dialogmessage = "Login Succssful !!!";

dialogtype = JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component)

null, dialogmessage, dialogs, dialogtype);

loginname.setText("");

Page 13: Library management system

loginpass.setText("");

    showMainprograms();

}

void showMainprograms()

     {

fr6=new JFrame("Task Performer My Librarian v1.0 ");

     fr6.setVisible(true);

fr6.setSize(600,300);

p6=new JPanel();

p6.setLayout(gridbag);

Calendar cal =

Calendar.getInstance(TimeZone.getDefault());

String DATE_FORMAT="dd-MM-yyyy";

java.text.SimpleDateFormat sdf = new

java.text.SimpleDateFormat(DATE_FORMAT);

sdf.setTimeZone(TimeZone.getDefault());

//System.out.println("Now : "+sdf.format(cal.getTime()));

String t1 = sdf.format(cal.getTime());

    

p6.setBorder

(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorde

r(),"Main "+loginnameback+" Logged in"));

l2=new JLabel(t1);

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=3;

c.gridy=0;

gridbag.setConstraints(l2,c);

p6.add(l2,c);

Page 14: Library management system

ADD = new JButton("ADD NEW BOOK");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 0;      

        gridbag.setConstraints(ADD, c);

        p6.add(ADD);

ADD.addActionListener(new

ButtonHandler());

DELETE = new JButton("DELETE EXISTING BOOK");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 1;      

        gridbag.setConstraints(DELETE, c);

        p6.add(DELETE);

DELETE.addActionListener(new

ButtonHandler());

ADDNEWUSER = new JButton("ADD NEW USER");

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

Page 15: Library management system

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 2;      

        gridbag.setConstraints(ADDNEWUSER, c);

        p6.add(ADDNEWUSER);

ADDNEWUSER.addActionListener(new

ButtonHandler());

DELEXISTUSER = new JButton("DELETE EXISTING USER");

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 3;      

        gridbag.setConstraints(DELEXISTUSER,

c);

        p6.add(DELEXISTUSER);

DELEXISTUSER.addActionListener(new

ButtonHandler());

CHANGEPW = new JButton("CHANGE PASSWORD");

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

Page 16: Library management system

        c.gridy = 4;      

        gridbag.setConstraints(CHANGEPW, c);

        p6.add(CHANGEPW);

CHANGEPW.addActionListener(new

ButtonHandler());

fr6.getContentPane().add(p6);

JFrame.setDefaultLookAndFeelDecorated(true);

}

void showAccountprograms()

     {

     Calendar cal = Calendar.getInstance(TimeZone.getDefault());

String DATE_FORMAT="dd-MM-yyyy";

java.text.SimpleDateFormat sdf = new

java.text.SimpleDateFormat(DATE_FORMAT);

sdf.setTimeZone(TimeZone.getDefault());

String t1 = sdf.format(cal.getTime());

fr4=new JFrame("Task Performer My Librarian v1.0 ");

     fr4.setVisible(true);

fr4.setSize(600,300);

//fr4.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

p4=new JPanel();

p4.setLayout(gridbag);

    

p4.setBorder

(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorde

r(),"User "+loginnameback+" Logged in"));

Page 17: Library management system

      l2=new JLabel(t1);

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=3;

c.gridy=0;

gridbag.setConstraints(l2,c);

p4.add(l2,c);

ADD = new JButton("ADD NEW BOOK");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 0;      

        gridbag.setConstraints(ADD, c);

        p4.add(ADD);

ADD.addActionListener(new

ButtonHandler());

DELETE = new JButton("DELETE EXISTING BOOK");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 1;      

        gridbag.setConstraints(DELETE, c);

Page 18: Library management system

        p4.add(DELETE);

DELETE.addActionListener(new

ButtonHandler());

CHANGEPW = new JButton("CHANGE PASSWORD");

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 2;      

        gridbag.setConstraints(CHANGEPW, c);

        p4.add(CHANGEPW);

CHANGEPW.addActionListener(new

ButtonHandler());

MARKEOI = new JButton("MARK END OF INPUT");

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 3;      

        gridbag.setConstraints(MARKEOI, c);

        p4.add(MARKEOI);

MARKEOI.addActionListener(new

ButtonHandler());

QUERY = new JButton("RUN QUERY");

Page 19: Library management system

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 4;      

        gridbag.setConstraints(QUERY, c);

        p4.add(QUERY);

QUERY.addActionListener(new

ButtonHandler());

REPORT = new JButton("REPORTS");

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 2;      

     

        c.gridy = 0;      

        gridbag.setConstraints(REPORT, c);

        p4.add(REPORT);

REPORT.addActionListener(new

ButtonHandler());

ISSUE_BOOK = new JButton("ISSUE BOOK");

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

Page 20: Library management system

        c.gridx = 2;      

     

        c.gridy = 1;      

        gridbag.setConstraints(ISSUE_BOOK, c);

        p4.add(ISSUE_BOOK);

ISSUE_BOOK.addActionListener(new

ButtonHandler());

ADD_BORROWER = new JButton("ADD NEW BORROWER");

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 2;      

     

        c.gridy = 2;      

        gridbag.setConstraints(ADD_BORROWER,

c);

        p4.add(ADD_BORROWER);

ADD_BORROWER.addActionListener(new

ButtonHandler());

CLOSE_BORROWER = new JButton("CLOSE BORROWER RECORD");

c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 2;      

     

        c.gridy = 3;      

        gridbag.setConstraints(CLOSE_BORROWER,

Page 21: Library management system

c);

        p4.add(CLOSE_BORROWER);

CLOSE_BORROWER.addActionListener(new

ButtonHandler());

fr4.getContentPane().add(p4);

JFrame.setDefaultLookAndFeelDecorated(true);

}

void addnewbook()

    {

fr3=new JFrame(" My Librarian v1.0 Add-Book ");

     fr3.setVisible(true);

fr3.setSize(600,300);

//fr3.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

p3=new JPanel();

p3.setLayout(gridbag);

     //serialno=new JTextField(5);

section=new JTextField(10);

bookname=new JTextField(30);

author=new JTextField(30);

price=new JTextField(20);

availcode=new JTextField(1);

currentborrower=new JTextField(30);

     /*l1=new JLabel("Serial No ");

    c.ipady=2;

c.ipadx=2;

Page 22: Library management system

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=0;

gridbag.setConstraints(l1,c);

p3.add(l1,c);

    

    serialno= new

JTextField("                                           ");

    c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=0;

gridbag.setConstraints(serialno,c);

p3.add(serialno);*/

l2=new JLabel("Section ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=1;

gridbag.setConstraints(l2,c);

p3.add(l2,c);

section= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=1;

gridbag.setConstraints(section,c);

p3.add(section);

l3=new JLabel("Book Name ");

    c.ipady=2;

Page 23: Library management system

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=2;

gridbag.setConstraints(l3,c);

p3.add(l3,c);

bookname= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=2;

gridbag.setConstraints(bookname,c);

p3.add(bookname);

l4=new JLabel("Author ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=3;

gridbag.setConstraints(l4,c);

p3.add(l4,c);

author= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=3;

gridbag.setConstraints(author,c);

p3.add(author);

Page 24: Library management system

l5=new JLabel("Price ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=4;

gridbag.setConstraints(l5,c);

p3.add(l5,c);

price= new JTextField("                               ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=4;

gridbag.setConstraints(price,c);

p3.add(price);

l6=new JLabel("Avail Code ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=5;

gridbag.setConstraints(l6,c);

p3.add(l6,c);

availcode= new JTextField("         ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=5;

gridbag.setConstraints(availcode,c);

p3.add(availcode);

Page 25: Library management system

l7=new JLabel("Current Borrower ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=6;

gridbag.setConstraints(l7,c);

p3.add(l7,c);

currentborrower= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=6;

gridbag.setConstraints(currentborrower,c);

p3.add(currentborrower);

AddNewBook = new JButton("ADD THIS BOOK");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.CENTER;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 7;      

        gridbag.setConstraints(AddNewBook, c);

        p3.add(AddNewBook);

AddNewBook.addActionListener(new

ButtonHandler());

Page 26: Library management system

fr3.getContentPane().add(p3);

JFrame.setDefaultLookAndFeelDecorated(true);

}

void LIBADD()

{

  try

  {

String temp2 = 

section.getText();

   temp2 =  temp2.trim();

    String temp3 =  bookname.getText();

   temp3 =  temp3.trim();

String temp4 =  author.getText();

   temp4 =  temp4.trim();

String temp5 =  price.getText();

   temp5 =  temp5.trim();

String temp6 = 

availcode.getText();

   temp6 =  temp6.trim();

String temp7 = 

currentborrower.getText();

   temp7 =  temp7.trim();

Class.forName(driver);

Connection

connection=DriverManager.getConnection(url);

Statement statement =

connection.createStatement();

//Generate new serial number

String query = "SELECT * FROM

book";

ResultSet rs =

statement.executeQuery(query);

int cnt = 0;

Page 27: Library management system

while (rs.next())

{

    cnt++;     

}

cnt = cnt+1;

serialno="000"+cnt;

sq="INSERT INTO book (serialno,

section, bookname, author, price, availcode, currentborrower,

maker) VALUES

('

"+serialno+"','"+temp2+"','"+temp3+"','"+temp4+"','"+temp5+"','"+

temp6+"','"+temp7+"','"+loginnameback+"')";

statement.executeUpdate(sq);

dialogmessage = "New Serial

Number is : "+serialno;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

dialogmessage = "New Book

Added !! "+temp3;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

Page 28: Library management system

connection.close();

//set other textboxes black to

enable new record entry

//serialno.setText("");

section.setText("");

bookname.setText("");

author.setText("");

price.setText("");

availcode.setText("");

currentborrower.setText("");

  }

  catch(Exception ex)

  {

  }

}

void deloldbook()

{

     fr5=new JFrame(" My Librarian v1.0 Delete-Book ");

     fr5.setVisible(true);

fr5.setSize(600,300);

p5=new JPanel();

p5.setLayout(gridbag);

l8=new JLabel("Enter Serial No : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=0;

Page 29: Library management system

gridbag.setConstraints(l8,c);

p5.add(l8,c);

serno= new

JTextField("                                           ");

    c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=0;

gridbag.setConstraints(serno,c);

p5.add(serno);

DelOldBook = new JButton("DELETE THIS BOOK");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.CENTER;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 2;      

        gridbag.setConstraints(DelOldBook, c);

        p5.add(DelOldBook);

DelOldBook.addActionListener(new

ButtonHandler());

fr5.getContentPane().add(p5);

JFrame.setDefaultLookAndFeelDecorated(true);

}

void LIBCONFIRM()

{

  try

Page 30: Library management system

  {

Class.forName(driver);

Connection

connection=DriverManager.getConnection(url);

Statement statement =

connection.createStatement();

String query = "SELECT * FROM

book";

ResultSet rs =

statement.executeQuery(query);

boolean hasResults =

statement.execute(query);

if(hasResults)

{

    ResultSet result =

statement.getResultSet();

//JDBC step 7 : if there

are results Get the "SET"

    if(result!=null)

{

//take this "SET" of

results from "SQL"

//call this method

"checkdel(ResultSet r)" and pass ResultSet to it

if (DelFlag)

{

checkdel(result);

}

else if(AddFlag)

{

checkadd(result);

Page 31: Library management system

}

   }

connection.close();

  }

  }

  catch(Exception ex)

  {

  }

}

void checkadd(ResultSet r) throws SQLException

{

  ResultSetMetaData rmeta =

r.getMetaData();

//Get Metadata from resultset

int numColumns=rmeta.getColumnCount();

String temp3 =  bookname.getText();

   temp3 =  temp3.trim();

int foundrec = 0;

while(r.next())

{

String param3 =

r.getString(3).trim();

// 3rd field i.e. bookname

in the table 'book' , database 'bank.mdb'

if (param3.equals(temp3))

{

foundrec =1;

dialogmessage =

Page 32: Library management system

"Book Already exist with Name : "+temp3;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

section.setText("");

bookname.setText("");

author.setText("");

price.setText("");

availcode.setText("");

  

currentborrower.setText("");

   

}

}

if(foundrec==0)

{

dialogmessage =

"Book Not Found,New book : "+temp3;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogf,dialogtype);

String msgsel2 =

"Addition OK?";

int n =

Page 33: Library management system

JOptionPan

e.showConfirmDialog(frame,msgsel1,msgsel2,JOptionPane.YES_NO_OPTI

ON);

if

(n==JOptionPane.YES_OPTION)

{

LIBADD();

AddFlag=false;

}

/*LIBADD();

AddFlag=false;*/

}

//System.out.println(temp3);

}

void checkdel(ResultSet r) throws SQLException

{

  ResultSetMetaData rmeta =

r.getMetaData();

//Get Metadata from resultset

int numColumns=rmeta.getColumnCount();

String temp1 =  serno.getText();

   temp1 =  temp1.trim();

int foundrec = 0;

while(r.next())

{

String param1 =

r.getString(1).trim();

// 1st field in the table

Page 34: Library management system

'book' , database 'bank.mdb'

if (param1.equals(temp1))

{

foundrec =1;

dialogmessage =

"Book Found with Serial no. : "+temp1;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

//JButton

showItButton = null;

//radioButton = new

JRadioButton;

//showItButton = new

JButton("Show It !!");

String msgsel2 =

"Deletion OK?";

int n =

JOptionPan

e.showConfirmDialog(frame,msgsel1,msgsel2,JOptionPane.YES_NO_OPTI

ON);

if

(n==JOptionPane.YES_OPTION)

{

LIBDEL();

DelFlag=false;

}

else return;

//LIBDEL();

Page 35: Library management system

}

}

if(foundrec==0)

{

dialogmessage =

"Book Not Found For Serial no. : "+temp1;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogf,dialogtype);

serno.setText("");

}

//System.out.println(temp1);

}

void LIBDEL()

{

try

{

String temp1 =  serno.getText();

   temp1 =  temp1.trim();

Class.forName(driver);

Connection

connection=DriverManager.getConnection(url);

Statement statement =

connection.createStatement();

Page 36: Library management system

sbookd="DELETE FROM book WHERE

serialno='"+temp1+"'";

statement.executeUpdate(sbookd);

connection.close();

dialogmessage = "Book Deleted with Serial no.

: "+temp1;

dialogtype = JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component)

null, dialogmessage, dialogs,dialogtype);

serno.setText("");

}

catch(Exception ex)

  {

  }

}

void addnewuser()

{

fr7=new JFrame(" My Librarian v1.0 Add-New User ");

     fr7.setVisible(true);

fr7.setSize(600,300);

p7=new JPanel();

p7.setLayout(gridbag);

     username=new JTextField(10);

Page 37: Library management system

password=new JTextField(30);

Designation=new JTextField(30);

l2=new JLabel("Enter User Name : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=1;

gridbag.setConstraints(l2,c);

p7.add(l2,c);

username= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=1;

gridbag.setConstraints(username,c);

p7.add(username);

l3=new JLabel("Enter Default Password : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=2;

gridbag.setConstraints(l3,c);

p7.add(l3,c);

    password= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

Page 38: Library management system

c.gridx=1;

c.gridy=2;

gridbag.setConstraints(password,c);

p7.add(password);

l4=new JLabel("Designation ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=3;

gridbag.setConstraints(l4,c);

p7.add(l4,c);

Designation= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=3;

gridbag.setConstraints(Designation,c);

p7.add(Designation);

AddThisUser = new JButton("ADD THIS USER");

        c.ipady = 3;      

c.ipadx = 3;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx =0;      

     

        c.gridy =4;      

        gridbag.setConstraints(AddThisUser, c);

        p7.add(AddThisUser);

Page 39: Library management system

AddThisUser.addActionListener(new

ButtonHandler()); 

     fr7.getContentPane().add(p7);

JFrame.setDefaultLookAndFeelDecorated(true);

}

void delexistuser()

{

fr8=new JFrame(" My Librarian v1.0 Delete-Existing User

");

     fr8.setVisible(true);

fr8.setSize(600,300);

p8=new JPanel();

p8.setLayout(gridbag);

     username=new JTextField(10);

l2=new JLabel("Enter User Name : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=1;

gridbag.setConstraints(l2,c);

p8.add(l2,c);

username= new

Page 40: Library management system

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=1;

gridbag.setConstraints(username,c);

p8.add(username);

DelThisUser = new JButton("DELETE THIS USER");

        c.ipady = 3;      

c.ipadx = 3;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx =0;      

     

        c.gridy =4;      

        gridbag.setConstraints(DelThisUser, c);

        p8.add(DelThisUser);

DelThisUser.addActionListener(new

ButtonHandler()); 

     fr8.getContentPane().add(p8);

JFrame.setDefaultLookAndFeelDecorated(true);

}

void USRCONFIRM()

{

  try

Page 41: Library management system

  {

Class.forName(driver);

Connection

connection=DriverManager.getConnection(url);

Statement statement =

connection.createStatement();

String query = "SELECT * FROM

login";

ResultSet rs =

statement.executeQuery(query);

boolean hasResults =

statement.execute(query);

if(hasResults)

{

    ResultSet result =

statement.getResultSet();

//JDBC step 7 : if there

are results Get the "SET"

    if(result!=null)

{

//take this "SET" of

results from "SQL"

//call this method

"checkdel(ResultSet r)" and pass ResultSet to it

if (DelUsrFlag)

{

checkusrdel(result);

}

else if(AddUsrFlag)

{

checkusradd(result);

Page 42: Library management system

}

   }

connection.close();

  }

  }

  catch(Exception ex)

  {

  }

}

void checkusradd(ResultSet r) throws SQLException

{

  ResultSetMetaData rmeta =

r.getMetaData();

//Get Metadata from resultset

int numColumns=rmeta.getColumnCount();

String temp3 =  username.getText();

   temp3 =  temp3.trim();

int foundrec = 0;

while(r.next())

{

String param3 =

r.getString(1).trim();

// 3rd field i.e. bookname

in the table 'book' , database 'bank.mdb'

if (param3.equals(temp3))

{

foundrec =1;

dialogmessage =

Page 43: Library management system

"User Already exist with Name : "+temp3;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogw,dialogtype);

username.setText("");

password.setText("");

Designation.setText("");

   

}

}

if(foundrec==0)

{

dialogmessage =

"User Not Found,New User : "+temp3;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

String msgsel2 =

"Addition OK?";

int n =

JOptionPan

e.showConfirmDialog(frame,msgsel1,msgsel2,JOptionPane.YES_NO_OPTI

Page 44: Library management system

ON);

if

(n==JOptionPane.YES_OPTION)

{

USERADD();

AddUsrFlag=false;

}

else return;

}

}

void checkusrdel(ResultSet r) throws SQLException

{

  ResultSetMetaData rmeta =

r.getMetaData();

//Get Metadata from resultset

int numColumns=rmeta.getColumnCount();

String temp1 =  username.getText();

   temp1 =  temp1.trim();

int foundrec = 0;

while(r.next())

{

String param1 =

r.getString(1).trim();

// 1st field in the table

Page 45: Library management system

'book' , database 'bank.mdb'

if (param1.equals(temp1))

{

foundrec =1;

dialogmessage =

"User Found with Name : "+temp1;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

String msgsel2 =

"Deletion OK?";

int n =

JOptionPan

e.showConfirmDialog(frame,msgsel1,msgsel2,JOptionPane.YES_NO_OPTI

ON);

if

(n==JOptionPane.YES_OPTION)

{

USERDEL();

DelUsrFlag=false;

}

else return;

}

}

if(foundrec==0)

{

dialogmessage =

Page 46: Library management system

"User Not Found For Name : "+temp1;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogf,dialogtype);

username.setText("");

password.setText("");

Designation.setText("");

}

//System.out.println(temp1);

}

void USERADD()

{

  try

  {

String temp2 = 

username.getText();

   temp2 =  temp2.trim();

    String temp3 =  password.getText();

   temp3 =  temp3.trim();

String temp4 = 

Designation.getText();

   temp4 =  temp4.trim();

Class.forName(driver);

Page 47: Library management system

Connection

connection=DriverManager.getConnection(url);

Statement statement =

connection.createStatement();

//Generate new serial number

String query = "SELECT * FROM

login";

ResultSet rs =

statement.executeQuery(query);

int cnt = 0;

while (rs.next())

{

    cnt++;     

}

cnt = cnt+1;

serialno="000"+cnt;

sqUsr="INSERT INTO login

(username, password, Designation, usercount) VALUES

('"+temp2+"','"+temp3+"','"+temp4+"','"+serialno+"')";

statement.executeUpdate(sqUsr);

dialogmessage = "New User Number

is : "+serialno;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

dialogmessage = "New User

Added !! "+temp2;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

Page 48: Library management system

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

connection.close();

//set other textboxes black to

enable new record entry

//serialno.setText("");

password.setText("");

username.setText("");

Designation.setText("");

  }

  catch(Exception ex)

  {

  }

}

void USERDEL()

{

try

{

String temp1 =  username.getText();

   temp1 =  temp1.trim();

Class.forName(driver);

Connection

connection=DriverManager.getConnection(url);

Statement statement =

connection.createStatement();

sdUsr="DELETE FROM login WHERE

username='"+temp1+"'";

Page 49: Library management system

/*dialogmessage = "Are you sure ?? ";

dialogtype = JOptionPane.QUESTION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component)

null, dialogmessage, dialogd,dialogtype);*/

statement.executeUpdate(sdUsr);

connection.close();

dialogmessage = "User Deleted with Name :

"+temp1;

dialogtype = JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component)

null, dialogmessage, dialogs,dialogtype);

username.setText("");

}

catch(Exception ex)

  {

  }

}

void CHPW()

{

fr9=new JFrame("Change Password My Librarian v1.0 ");

     fr9.setVisible(true);

fr9.setSize(600,300);

p9=new JPanel();

p9.setLayout(gridbag);

Page 50: Library management system

l1=new JLabel("Enter User Name : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=0;

gridbag.setConstraints(l1,c);

p9.add(l1,c);

usrname= new

JTextField("                                           ");

    c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=0;

gridbag.setConstraints(usrname,c);

p9.add(usrname);

l2=new JLabel("Enter Old Password : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=1;

gridbag.setConstraints(l2,c);

p9.add(l2,c);

oldpw= new JPasswordField(10);

oldpw.setEchoChar('*');

c.ipady=2;

c.ipadx=2;

c.gridx=1;

Page 51: Library management system

c.gridy=1;

gridbag.setConstraints(oldpw,c);

p9.add(oldpw);

l3=new JLabel("Enter New Password : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=2;

gridbag.setConstraints(l3,c);

p9.add(l3,c);

newpw= new JPasswordField(10);

newpw.setEchoChar('*');

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=2;

gridbag.setConstraints(newpw,c);

p9.add(newpw);

l4=new JLabel("Confirm New Password : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=3;

gridbag.setConstraints(l4,c);

p9.add(l4,c);

newpwc= new JPasswordField(10);

newpwc.setEchoChar('*');

c.ipady=2;

Page 52: Library management system

c.ipadx=2;

c.gridx=1;

c.gridy=3;

gridbag.setConstraints(newpwc,c);

p9.add(newpwc);

CHANGEMYPW = new JButton("CHANGE MY PASSWORD");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.WEST;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 4;      

        gridbag.setConstraints(CHANGEMYPW, c);

p9.add(CHANGEMYPW);

CHANGEMYPW.addActionListener(new ButtonHandler());

fr9.getContentPane().add(p9);

JFrame.setDefaultLookAndFeelDecorated(true);

   }

void PWCHG()

{

try

{

Class.forName(driver);

Connection

Page 53: Library management system

connection=DriverManager.getConnection(url);

Statement statement =

connection.createStatement();

String query = "SELECT * FROM login";

ResultSet rs = statement.executeQuery(query);

boolean hasResults =

statement.execute(query);

if(hasResults)

{

    ResultSet result =

statement.getResultSet();

if(result!=null)

{

validatepw(result);

   }

connection.close();

  }

  }

  catch(Exception ex)

  {

  }

}

void validatepw(ResultSet r) throws SQLException

{

String temp = usrname.getText();

temp = temp.trim();

   

//System.out.println(temp);

Page 54: Library management system

String temp1 = oldpw.getText();

   temp1 = temp1.trim();

String temp2 = newpw.getText();

               temp2 = temp2.trim();

String temp3 = newpwc.getText();

               temp3 = temp3.trim();

if (temp1.equals(temp2))

{

dialogmessage = "New Password Same as

Old one ";

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null, dialogmessage,

dialogw,dialogtype);

oldpw.setText("");

newpw.setText("");

newpwc.setText("");

return;

}

/*else if (temp2 !=(temp3))

{

dialogmessage = "Pls confirm new

password again ";

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogw,dialogtype);

//oldpw.setText("");

newpw.setText("");

Page 55: Library management system

newpwc.setText("");

return;

}*/

ResultSetMetaData rmeta =

r.getMetaData();

//Get Metadata from resultset

int foundrec = 0;

  //int

numColumns=rmeta.getColumnCount(); 

while(r.next())

{

String param1 =

r.getString(1).trim();

String param2 =

r.getString(2).trim();

if (param1.equals(temp) &&

param2.equals(temp1))

{

foundrec=1;

dialogmessage =

"Correct Record Found ";

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogw,dialogtype);

}

}

if(foundrec==0)

Page 56: Library management system

{

dialogmessage =

"Wrong Old Password ";

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogw,dialogtype);

oldpw.setText("");

newpw.setText("");

newpwc.setText("");

foundrec=0;

}

if (foundrec==1)

{

pwdchg();

oldpw.setText("");

newpw.setText("");

newpwc.setText("");

}

}

void pwdchg()

{

try

{

String temp =

usrname.getText();

                       temp = temp.trim();

String temp2 =

newpw.getText();

Page 57: Library management system

   temp2 =

temp2.trim();

squpdate = "UPDATE

login SET password='"+temp2+"' WHERE username = '"+temp+"'";

Class.forName(driver);

   Connection

connection=DriverManager.getConnection(url);

   Statement statement

= connection.createStatement();

statement.executeUpdate(squpdate);

   connection.close();

dialogmessage =

"Password Changed ";

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

}

catch(Exception ex)

  {

 

  }

 

}

Page 58: Library management system

void QueryBuilder() // DYNAMIC QUERY BUILDER TAB

{

fr10=new JFrame(" My Librarian v1.0 Dynamic

Query Builder ");

fr10.setVisible(true);

fr10.setSize(600,300);

p10=new JPanel();

p10.setLayout(gridbag);

p10.setBorder

(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorde

r(),"Run Your Query"));

jCheckboxq1 = new

JCheckBox("Serial Number");

jCheckboxq1.setFont(dataFont);

           c5.gridx = 0;       

           c5.gridy = 0;

c5.fill =

GridBagConstraints.BOTH;

           gridbag.setConstraints(jCheckboxq1,

c5);

jCheckboxq1.addItemListener(myListener);

           p10.add(jCheckboxq1);

jRadiobuttonq1 = new JRadioButton("No

Condition",true);

jRadiobuttonq1.setFont(dataFont);

    c5.gridx = 1;      

        c5.gridy = 0; 

c5.fill =

Page 59: Library management system

GridBagConstraints.BOTH;

        gridbag.setConstraints(jRadiobuttonq1,

c5);

jRadiobuttonq1.addActionListener(rlistener);

bgq.add(jRadiobuttonq1);

        p10.add(jRadiobuttonq1);

jLabelq1 = new JLabel("   WHERE    ");

jLabelq1.setFont(dataFont);

    c5.gridx = 2;      

        c5.gridy = 0;

c5.fill =

GridBagConstraints.BOTH;    

        gridbag.setConstraints(jLabelq1, c5);

        p10.add(jLabelq1);

jComboboxq1 = new JComboBox();

jComboboxq1.addItem("Book

Name");

    jComboboxq1.addItem("Author");

    jComboboxq1.addItem("Price");

    jComboboxq1.addItem("Current

Borrower");

jComboboxq1.addItem("Availability");

jComboboxq1.setFont(dataFont);

       c5.gridx = 3;

        c5.gridy = 0;

c5.fill =

GridBagConstraints.BOTH;

jComboboxq1.addItemListener(cbListener);  

       

gridbag.setConstraints(jComboboxq1, c5);

        p10.add(jComboboxq1);

jComboboxq2 = new JComboBox();

Page 60: Library management system

jComboboxq2.addItem("=");

    jComboboxq2.addItem(">");

    jComboboxq2.addItem(">=");

    jComboboxq2.addItem("<");

jComboboxq2.addItem("<=");

jComboboxq2.addItem("!=");

jComboboxq2.addItem("LIKE");

jComboboxq2.addItem("NOT

LIKE");

jComboboxq2.setFont(dataFont);

       c5.gridx = 4;

        c5.gridy = 0;

c5.fill =

GridBagConstraints.BOTH;       

      

gridbag.setConstraints(jComboboxq2, c5);

jComboboxq2.addItemListener(cbListener); 

        p10.add(jComboboxq2);    

givencondition = new

JTextField("                                           ");

        c5.gridx = 5;      

   

        c5.gridy = 0;      

        gridbag.setConstraints(givencondition,

c5);

        p10.add(givencondition);

jCheckboxq2 = new JCheckBox("Book

Name");

jCheckboxq2.setFont(dataFont);

           c5.gridx = 0;       

           c5.gridy = 1;

c5.fill =

GridBagConstraints.BOTH;

Page 61: Library management system

           gridbag.setConstraints(jCheckboxq2,

c5);

jCheckboxq2.addItemListener(myListener);

           p10.add(jCheckboxq2);

jRadiobuttonq2 = new JRadioButton("Set

Condition",false);

jRadiobuttonq2.setFont(dataFont);

    c5.gridx = 1;      

        c5.gridy = 1; 

c5.fill =

GridBagConstraints.BOTH;

        gridbag.setConstraints(jRadiobuttonq2,

c5);

jRadiobuttonq2.addActionListener(rlistener);

bgq.add(jRadiobuttonq2);

        p10.add(jRadiobuttonq2);

jCheckboxq3 = new JCheckBox("Author");

jCheckboxq3.setFont(dataFont);

           c5.gridx = 0;       

           c5.gridy = 2;

c5.fill =

GridBagConstraints.BOTH;

           gridbag.setConstraints(jCheckboxq3,

c5);

jCheckboxq3.addItemListener(myListener);

           p10.add(jCheckboxq3);

jCheckboxq4 = new JCheckBox("Price");

jCheckboxq4.setFont(dataFont);

           c5.gridx = 0;       

           c5.gridy = 3;

c5.fill =

GridBagConstraints.BOTH;

           gridbag.setConstraints(jCheckboxq4,

Page 62: Library management system

c5);

jCheckboxq4.addItemListener(myListener);

           p10.add(jCheckboxq4);

jCheckboxq5 = new JCheckBox("Currrent

Borrower");

jCheckboxq5.setFont(dataFont);

           c5.gridx = 0;       

           c5.gridy = 4;

c5.fill =

GridBagConstraints.BOTH;

           gridbag.setConstraints(jCheckboxq5,

c5);

jCheckboxq5.addItemListener(myListener);

           p10.add(jCheckboxq5);

RUNQUERY = new JButton("RUN THIS

QUERY");

c5.gridx = 5;      

    

        c5.gridy = 4; 

gridbag.setConstraints(RUNQUERY, c5);

RUNQUERY.addActionListener(new ButtonHandler());

p10.add(RUNQUERY);

jLabelq2 = new JLabel(" Query Result

");

jLabelq2.setFont(dataFont);

c5.weighty = 1.0;

        c5.gridx = 0;      

        c5.gridy = 5; 

c5.gridwidth = 6;    

        gridbag.setConstraints(jLabelq2, c5);

        p10.add(jLabelq2);

Page 63: Library management system

resultArea = new JTextArea(10,60);

resultArea.setFont(dataFont);

           c5.gridx = 0;       

           c5.gridy = 6;

c5.fill =

GridBagConstraints.BOTH;

c5.gridwidth = 6; 

           gridbag.setConstraints(resultArea, c5);

           p10.add(resultArea);

fr10.getContentPane().add(p10);

JFrame.setDefaultLookAndFeelDecorated(true);

}

class CheckBoxListener implements ItemListener

{

   

public void itemStateChanged(ItemEvent e)

    {

        Object source = e.getItemSelectable();

if ((e.getStateChange() ==

ItemEvent.SELECTED) && (source==jCheckboxq1))

       {

SerialNoSel = 1;

      }

if ((e.getStateChange() ==

ItemEvent.DESELECTED)  && (source==jCheckboxq1))

       {

SerialNoSel = 0;

      }

Page 64: Library management system

if ((e.getStateChange() ==

ItemEvent.SELECTED) && (source==jCheckboxq2))

       {

BookNameSel = 1;

      }

if ((e.getStateChange() ==

ItemEvent.DESELECTED)  && (source==jCheckboxq2))

       {

BookNameSel = 0;

      }

if ((e.getStateChange() ==

ItemEvent.SELECTED) && (source==jCheckboxq3))

       {

AuthorSel = 1;

      }

if ((e.getStateChange() ==

ItemEvent.DESELECTED)  && (source==jCheckboxq3))

       {

AuthorSel = 0;

      }

if ((e.getStateChange() ==

ItemEvent.SELECTED) && (source==jCheckboxq4))

       {

PriceSel = 1;

      }

if ((e.getStateChange() ==

ItemEvent.DESELECTED)  && (source==jCheckboxq4))

       {

PriceSel = 0;

      }

if ((e.getStateChange() ==

ItemEvent.SELECTED) && (source==jCheckboxq5))

       {

CurrentBorrowerSel = 1;

      }

if ((e.getStateChange() ==

Page 65: Library management system

ItemEvent.DESELECTED)  && (source==jCheckboxq5))

       {

CurrentBorrowerSel = 0;

      }

    }

}

class ComboBoxListener implements ItemListener 

{

      public void itemStateChanged(ItemEvent e)

{

    sr = (String)e.getItem();

if (e.getSource().equals(jComboboxq1))

    {

Combo1sel =

jComboboxq1.getSelectedItem().toString();

    }

if (e.getSource().equals(jComboboxq2))

    {

Combo2sel =

jComboboxq2.getSelectedItem().toString();

    }

    }

}

class RadioListener implements ActionListener

{

      public void actionPerformed(ActionEvent e)

{

  condsel = e.getActionCommand();

    }

}

Page 66: Library management system

void handleQuery()

{

qry="SELECT";

int cnt=0;

if(SerialNoSel==1)

{

cnt++;

qry+=" serialno,";

}

if(BookNameSel==1)

{

cnt++;

qry+=" bookname,";

}

if(AuthorSel==1)

{

cnt++;

qry+=" author,";

}

if(PriceSel==1)

{

cnt++;

qry+=" price,";

}

if(CurrentBorrowerSel==1)

{

cnt++;

qry+=" currentborrower,";

}

int slen=qry.length();

int tempslen = slen-1;

qry = qry.substring(0,tempslen);

qry+=" FROM book";

Page 67: Library management system

if(condsel=="Set Condition")

{

qry+=" WHERE "+Combo1sel+"

"+Combo2sel+" "+givencondition.getText().trim();

}

jLabelq2.setText(qry);

accessDBquery(qry);

}

void accessDBquery(String sqlq)

{

  try

{

   Class.forName(driver);

   Connection

connection=DriverManager.getConnection(url);

   Statement statement =

connection.createStatement();

   boolean hasResults =

statement.execute(sqlq);

   if(hasResults)

{

    ResultSet result =

statement.getResultSet();

    if(result!=null)

{

displayResultsQ(result);

}

else

{

resultArea.setText("");

}  

}

connection.close();

Page 68: Library management system

  }

catch(Exception ex)

{

   resultArea.setText(ex.toString());

  }

}

void displayResultsQ(ResultSet r) throws

SQLException

{

  ResultSetMetaData rmeta = r.getMetaData();

  int numColumns=rmeta.getColumnCount();

  String text="";

  for(int i=1;i<=numColumns;++i)

{

   if(i<numColumns)

    text+=rmeta.getColumnName(i)+" | ";

   else

    text+=rmeta.getColumnName(i);

  }

  text+="\n";

  while(r.next())

{

   for(int i=1;i<=numColumns;++i)

{

    if(i<numColumns)

     text+=r.getString(i)+" | ";

    else

     text+=r.getString(i).trim();

   }

   text+="\n";

  }

  resultArea.setText(text);

}

Page 69: Library management system

/*void setupMenuBar()

{

    MenuBar menuBar = new MenuBar();

  // Main Menu will be "File"

  Menu fileMenu = new Menu("File");

  // Sub menu under it will be

"Exit"  

  MenuItem fileExit = new

MenuItem("Exit");

// Handle this submenu

item clcik event to Exit    

 

fileExit.addActionListener(new MenuItemHandler());

  fileMenu.add(fileExit);

  menuBar.add(fileMenu);

  setMenuBar(menuBar);

}

class MenuItemHandler implements ActionListener

{

  public void actionPerformed(ActionEvent ev)

{

   String s=ev.getActionCommand();

   if(s=="Exit")

{

//close window on menuitem exit

    System.exit(0);

   }

  }

}*/

Page 70: Library management system

void BookReports() // REPORTS TAB WITH JTABLE

{

  fr11=new JFrame("Book Reports My Librarian

v1.0 ");

  fr11.setVisible(true);

  fr11.setSize(600,300);

  p11=new JPanel();

  p11.setLayout(gridbag);

  JPanel p11 = new JPanel();

 

p11.setBorder

(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorde

r(),"Book Reports"));

  try

  {  

Class.forName(driver);

   Connection

connection=DriverManager.getConnection(url);

   Statement statement =

connection.createStatement();

String query = "SELECT serialno,

bookname, author, price FROM book";

ResultSet rs =

statement.executeQuery(query);

ResultSetMetaData rmeta =

rs.getMetaData();

int

numColumns=rmeta.getColumnCount();

for(int i=1;i<=numColumns;++i)

{

   if(i<=numColumns)

{

defaulttablemodel.addColumn(rmeta.getColumnName(i));

}  

Page 71: Library management system

  }

while(rs.next())

{  

for(int i=1;i<=numColumns;

++i)  

{

if(i<=numColumns)

{

tempname =

rs.getString(i);

tempcnt=i-1;

data[tempcnt]

= tempname;

}

   }  

defaulttablemodel.addRow(data);

   }

  }

  catch(Exception ex)

  {

  //

  }

        p11.add(new JScrollPane(jtable));

fr11.getContentPane().add(p11);

JFrame.setDefaultLookAndFeelDecorated(true);

}

void addnewborrower()

    {

fr12=new JFrame(" My Librarian v1.0 Add-Borrower ");

     fr12.setVisible(true);

fr12.setSize(600,300);

//fr12.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

Page 72: Library management system

p12=new JPanel();

p12.setLayout(gridbag);

     

boname=new JTextField(30);

boaddress=new JTextField(50);

//bostatuscode=new JTextField(20);

l2=new JLabel("Borrower Name :  ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=1;

gridbag.setConstraints(l2,c);

p12.add(l2,c);

boname= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=1;

gridbag.setConstraints(boname,c);

p12.add(boname);

l3=new JLabel("Borrower Address : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=2;

gridbag.setConstraints(l3,c);

p12.add(l3,c);

Page 73: Library management system

boaddress= new

JTextField("                                                      

                        ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=2;

gridbag.setConstraints(boaddress,c);

p12.add(boaddress);

     l4=new JLabel("Phone No : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=3;

gridbag.setConstraints(l4,c);

p12.add(l4,c);

bophoneno= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=3;

gridbag.setConstraints(bophoneno,c);

p12.add(bophoneno);

AddThisBorrower = new JButton("ADD THIS BORROWER");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.CENTER;

Page 74: Library management system

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 4;      

        gridbag.setConstraints(AddThisBorrower,

c);

        p12.add(AddThisBorrower);

AddThisBorrower.addActionListener(new

ButtonHandler());

fr12.getContentPane().add(p12);

JFrame.setDefaultLookAndFeelDecorated(true);

}

void BORROWER_ADD()

{

  try

  {

String temp2 =  boname.getText();

   temp2 =  temp2.trim();

    String temp3 = 

boaddress.getText();

   temp3 =  temp3.trim();

    String temp5 = 

bophoneno.getText();

   temp5 =  temp5.trim();

   

Class.forName(driver);

Connection

connection=DriverManager.getConnection(url);

Page 75: Library management system

Statement statement =

connection.createStatement();

//Generate new serial number

String query = "SELECT * FROM

borrower_record";

ResultSet rs =

statement.executeQuery(query);

int cnt = 0;

while (rs.next())

{

    cnt++;     

}

cnt = cnt+1;

serialno="000"+cnt;

String temp4 = "O";

sq="INSERT INTO borrower_record

(boserial, boname, boaddress, bophoneno, bostatuscode) VALUES

('

"+serialno+"','"+temp2+"','"+temp3+"','"+temp5+"','"+temp4+"')";

statement.executeUpdate(sq);

dialogmessage = "New Serial

Number is : "+serialno;

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

dialogmessage = "New Borrower

Record Added !! "+temp2;

Page 76: Library management system

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

connection.close();

//set other textboxes black to

enable new record entry

//serialno.setText("");

boname.setText("");

boaddress.setText("");

bophoneno.setText("");

  }

  catch(Exception ex)

  {

  }

}

void ISSUE_BOOK()

     {

fr13=new JFrame("Task Performer My Librarian v1.0 ");

     fr13.setVisible(true);

fr13.setSize(600,300);

p13=new JPanel();

p13.setLayout(gridbag);

    

p13.setBorder

(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorde

r(),"ISSUE BOOK"));

Page 77: Library management system

  l2=new JLabel("Enter Serials No: ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=1;

gridbag.setConstraints(l2,c);

p13.add(l2,c);

  fboserial= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=1;

gridbag.setConstraints(fboserial,c);

p13.add(fboserial);

VIEW_REC = new JButton("VIEW");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.CENTER;

       

c.gridwidth = 1;  

        c.gridx = 0;      

     

        c.gridy = 2;      

        gridbag.setConstraints(VIEW_REC, c);

        p13.add(VIEW_REC);

VIEW_REC.addActionListener(new

ButtonHandler());

fr13.getContentPane().add(p13);

JFrame.setDefaultLookAndFeelDecorated(true);

Page 78: Library management system

}

void ExtractBookRecord()

{

  try

  {

String temp3 = 

fboserial.getText();

   temp3 =  temp3.trim();

Class.forName(driver);

Connection

connection=DriverManager.getConnection(url);

Statement statement =

connection.createStatement();

String query = "SELECT * FROM

borrower_record WHERE boserial ='"+temp3+"'";

boolean hasResults =

statement.execute(query);

//System.out.println(temp3);

if(hasResults)

{

    ResultSet result =

statement.getResultSet();

//JDBC step 7 : if there

are results Get the "SET"

    if(result!=null)

{

GetRecord(result);

}

Page 79: Library management system

connection.close();

  }

  }

  catch(Exception ex)

  {

  }

}

void GetRecord(ResultSet r) throws SQLException

{

 

String temp3 =  fboserial.getText();

   temp3 =  temp3.trim();

// System.out.println(temp3);

ResultSetMetaData rmeta =

r.getMetaData();

int foundrec = 0;

  int numColumns=rmeta.getColumnCount();

String text2="";

String text3="";

String text4="";

String text5="";

String text7="";

String text6="";

while(r.next())

{

text2+=r.getString(1);

  text3+=r.getString(2);

Page 80: Library management system

text4+=r.getString(3);

text5+=r.getString(4);

text6+=r.getString(5);

text7+=r.getString(7);

}

// System.out.println(text3);

  fr14=new JFrame("Borrower Last Details ");

      fr14.setVisible(true);

  fr14.setSize(600,300);

  p14=new JPanel();

  p14.setLayout(gridbag);

    

 

p14.setBorder

(BorderFactory.createTitledBorder(BorderFactory.createEtchedBorde

r(),"Borrower "+text3+" Details"));

  l2=new JLabel("Serials No: ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=1;

gridbag.setConstraints(l2,c);

p14.add(l2,c);

  borrowerSerialno= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=1;

gridbag.setConstraints(borrowerSerialno,c);

Page 81: Library management system

p14.add(borrowerSerialno);

  borrowerSerialno.setText(text2);

l4=new JLabel("Name : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=2;

gridbag.setConstraints(l4,c);

p14.add(l4,c);

borrowerName= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=2;

gridbag.setConstraints(borrowerName,c);

p14.add(borrowerName);

borrowerName.setText(text3);

l5=new JLabel("Address : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=3;

gridbag.setConstraints(l5,c);

p14.add(l5,c);

borrowerAddress= new

JTextField("                                           ");

c.ipady=2;

Page 82: Library management system

c.ipadx=2;

c.gridx=1;

c.gridy=3;

gridbag.setConstraints(borrowerAddress,c);

p14.add(borrowerAddress);

borrowerAddress.setText(text4);

l10=new JLabel("Phone No : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=4;

gridbag.setConstraints(l10,c);

p14.add(l10,c);

borrowerPhoneNo= new

JTextField("                                   ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=4;

gridbag.setConstraints(borrowerPhoneNo,c);

p14.add(borrowerPhoneNo);

borrowerPhoneNo.setText(text5);

l6=new JLabel("Last Book : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=5;

gridbag.setConstraints(l6,c);

p14.add(l6,c);

Page 83: Library management system

borrowerLastBook= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=5;

gridbag.setConstraints(borrowerLastBook,c);

p14.add(borrowerLastBook);

borrowerLastBook.setText(text6);

l7=new JLabel("Last Magazine : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

c.gridy=6;

gridbag.setConstraints(l7,c);

p14.add(l7,c);

borrowerLastMagazine= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=6;

gridbag.setConstraints(borrowerLastMagazine,c);

p14.add(borrowerLastMagazine);

//borrowerLastMagazine.setText(text6);

l8=new JLabel("Borrower status : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=0;

Page 84: Library management system

c.gridy=7;

gridbag.setConstraints(l8,c);

p14.add(l8,c);

borrowerStatus= new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=1;

c.gridy=7;

gridbag.setConstraints(borrowerStatus,c);

p14.add(borrowerStatus);

borrowerStatus.setText(text7);

l9=new JLabel("New Book : ");

    c.ipady=2;

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=2;

c.gridy=4;

gridbag.setConstraints(l9,c);

p14.add(l9,c);

borrowerNewBook = new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=3;

c.gridy=4;

gridbag.setConstraints(borrowerNewBook,c);

p14.add(borrowerNewBook);

l10=new JLabel("New Magazine : ");

    c.ipady=2;

Page 85: Library management system

c.ipadx=2;

c.anchor=GridBagConstraints.WEST;

c.gridx=2;

c.gridy=5;

gridbag.setConstraints(l10,c);

p14.add(l10,c);

borrowerNewMagazine = new

JTextField("                                           ");

c.ipady=2;

c.ipadx=2;

c.gridx=3;

c.gridy=5;

gridbag.setConstraints(borrowerNewMagazine,c);

p14.add(borrowerNewMagazine);

MODIFY_REC = new JButton("MODIFY");

        c.ipady = 2;      

c.ipadx = 2;      

        c.weighty = 0.0;  

        c.anchor = GridBagConstraints.EAST;

       

c.gridwidth = 1;  

        c.gridx = 2;      

     

        c.gridy = 6;      

        gridbag.setConstraints(MODIFY_REC, c);

        p14.add(MODIFY_REC);

MODIFY_REC.addActionListener(new

ButtonHandler());

fr14.getContentPane().add(p14);

JFrame.setDefaultLookAndFeelDecorated(true);

}

Page 86: Library management system

void UpdateBorrowerRecord()

{

try

{

Class.forName(driver);

Connection

connection=DriverManager.getConnection(url);

Statement statement =

connection.createStatement();

String query = "SELECT * FROM

borrower_record";

ResultSet rs = statement.executeQuery(query);

boolean hasResults =

statement.execute(query);

if(hasResults)

{

    ResultSet result =

statement.getResultSet();

if(result!=null)

{

Update_BorrowerDB();

   }

connection.close();

  }

  }

  catch(Exception ex)

  {

  }

Page 87: Library management system

}

void Update_BorrowerDB()

{

try

{

String temp =

borrowerSerialno.getText();

       temp =

temp.trim();

String temp1 =

borrowerNewBook.getText();

                       temp1 = temp1.trim();

String temp2 =

borrowerNewMagazine.getText();

   temp2 =

temp2.trim();

String temp5 =

borrowerStatus.getText();

       temp5 =

temp5.trim();

    int foundclosedrec =

0;

System.out.println(temp5);

     if

(temp5.equals("C"))

     {

foundclosedrec

= 1;

dialogmessage

Page 88: Library management system

= "Cannot Update.Closed Record";

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogf,dialogtype);

return;

     }

   

//System.out.println(temp);

//System.out.println(temp1);

//System.out.println(temp2);

if

(foundclosedrec==0)

{

squpdate_book =

"UPDATE borrower_record SET bolastbook='"+temp1+"' WHERE boserial

= '"+temp+"'";

squpdate_mag =

"UPDATE borrower_record SET bolastmagazine='"+temp2+"' WHERE

boserial = '"+temp+"'";

Class.forName(driver);

   Connection

connection=DriverManager.getConnection(url);

   Statement statement

= connection.createStatement();

statement.executeUpdate(squpdate_book);

statement.executeUpdate(squpdate_mag);

Page 89: Library management system

   connection.close();

dialogmessage =

"Borrower Record Updated";

dialogtype =

JOptionPane.INFORMATION_MESSAGE;

//show message

JOptionPane.showMessageDialog((Component) null,

dialogmessage, dialogs,dialogtype);

borrowerNewBook.setText("");

borrowerNewMagazine.setText("");

}

fr14.setVisible(false);

ISSUE_BOOK();

}

catch(Exception ex)

  {

 

  }

 

}

void getDate()

{

Calendar cal =

Page 90: Library management system

Calendar.getInstance(TimeZone.getDefault());

String DATE_FORMAT="dd-MM-yyyy";

java.text.SimpleDateFormat sdf = new

java.text.SimpleDateFormat(DATE_FORMAT);

sdf.setTimeZone(TimeZone.getDefault());

//System.out.println("Now :

"+sdf.format(cal.getTime()));

String t1 = sdf.format(cal.getTime());

}

}