Write a program in Java to demonstrate the use of 'final' keyword in the field declaration. How it is accessed using the objects.

 

AIM:  Write  a program in Java to demonstrate the use of the 'final' keyword in the field declaration. How it is accessed using the objects.

CODE:

class fdemo{

            final float a=10.4f;

            final char b;

            final int c;

            final long d;

            {

                        b='K';

            }

            //all final variables should be initilzed before constructor ends.

            fdemo(int c){

                        this.c=c;

                        d=1023123;

            }

}

public class p17{

            public static void main(String[] args)  {

                        fdemo o2=new fdemo(10);

                        System.out.println("A = "+o2.a);

                        System.out.println("B = "+o2.b);

                        System.out.println("D = "+o2.d);

                        System.out.println("C = "+o2.c);

            }

}

 OUTPUT: