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package Inheritance;

class SuperClass {

int i, j;

void showij() {

System.out.println("i and j: " + i + " " + j);

}

}

class SubClass extends SuperClass {

int k;

void showk() {

System.out.println("k:" + k);

}

void sum() {

System.out.println(i + j + k);

}

}

class InheritEx {

public static void main(String args[]) {

SuperClass sup = new SuperClass();

SubClass sub = new SubClass();

sup.i = 10;

sup.j = 20;

System.out.println("Contents of super class ");

sup.showij();

sub.i = 7;

sub.j = 8;

sub.k = 9;

System.out.println("Contents of sub class");

sub.showij();

sub.showk();

System.out.println("Sum of i, j and k in sub class");

sub.sum();

}

}