Java key definition & practice

java programmingNooria Esmaelzade

2016

Comments // this is a single comment

/*this is a block comment * it can be more than one line*/

/** this is a javadoc comment *It is used to display the longer comment *We can generate a html page by using javadoc command in CMD*/

Examples /* UnicodeCommentDemo.java * Java programs are written using Unicode characters * Unicode presenting a character recognized as usual Java token */ public class ClassBExcersise{ public static void main(String[] args) { // The method will print hello java in console

System.out.println(“hello java”); }}

Paragraph comment example

Single line comment example

Reserved words abstractassertbooleanbreakbytecasecatchcharclassconstcontinue

defaultdodoubleelseenumextendsfalsefinalfinallyfloatfor

gotoifimplementsimportinstanceofintinterfacelongnativenewnull

packageprivateprotectedpublicreturnshortstaticstrictfpsuperswitch

synchronizedthisthrowthrowstransienttruetryvoidvolatilewhile

Modifiers PublicPrivateProtectedFinalAbstractstatic

Class A blue print for the objects

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