Keyword Of JAVA Programming

Java Language Keywords

The Java language defines the following keywords and reserved words.

Topics Included in This Section

The abstract Keyword

The boolean Keyword

The break Keyword

The byte Keyword

The case Keyword

The catch Keyword

The char Keyword

The class Keyword

The continue Keyword

The default Keyword

The do Keyword

The double Keyword

The else Keyword

The extends Keyword

The false Keyword

The final Keyword

The finally Keyword

The float Keyword

The for Keyword

The if Keyword

The implements Keyword

The import Keyword

The instanceof Keyword

The int Keyword

The interface Keyword

The long Keyword

The new Keyword

The null Keyword

The package Keyword

The private Keyword

The protected Keyword

The public Keyword

The return Keyword

The short Keyword

The static Keyword

The super Keyword

The switch Keyword

The synchronized Keyword

The this Keyword

The throw Keyword

The throws Keyword

The transient Keyword

The try Keyword

The true Keyword

The void Keyword

The while Keyword

 

1. Abstract Java Keyword

The abstract keyword may modify a class or a method.
An abstract class can be extended (subclassed) but cannot be instantiated directly.
An abstract method is not implemented in the class in which it is declared, but must be overridden in some subclass.

Examples

  public abstract class MyClass 
{ 
}

public abstract String myMethod();

2. Boolean Java Keyword

boolean is a Java primitive type.
A boolean variable may take on one of the values true or false.

Examples

boolean valid = true;

  if (valid) 
{   
         <statement>
 }




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