Java program to implement use of Final Keyword on Class, Method and Variable

-

Simple Java program to use Final Keyword on following items:

  • Variable
  • Class
  • Method

Code:


class a{

final int a=5;

void setfinala(int x)

{

a=x;

}



final void finalmethod()

{ System.out.println("Final method.");

}

}



class a1 extends a{



void finalmethod()

{

System.out.println("Final method in extended class.");

}

}



final class b{

}



class c extends b{

}



class p33{

public static void main(String args[]){

a obj = new a();

a.setfinala(3);

}

}

Note: The program won't run because of error and that error is output of our program.





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