//Super class class Calc{ public int add(int a, int b){ return a+b; } public int sub(int a, int b){ return a-b; } } //Sub class of Calc class AdvCalc extends Calc{ public int mul(int a, int b){ return a*b; } public int div(int a, int b){ return a/b; } } class Inheritance_Demo{ public static void main(String[] args){ AdvCalc c=new AdvCalc(); //Creating the Object of the sub class int r1 = c.add(60, 4); //Getting the result of add method in r1 int r2 = c.sub(60, 4); //Getting the result of sub method in r2 int r3 = c.mul(60, 4); int r4 = c.div(60, 4); System.out.println(r1+" : "+r2+" : "+r3+" : "+r4); } }