MultilevelInheri.java

class Calculation{  
  
  void adding(int a, int b){
	  System.out.println("adding in super class: "+(a+b));
	  
  }
}

class Calculation2 extends Calculation{
  void adding2(int a, int b){
	  System.out.println("adding in Calculation2 class: "+(a+b));
	  
  }

}
class Calculation3 extends Calculation2{
  void adding3(int a, int b){
	  System.out.println("adding in Calculation3 class: "+(a+b));
	  
  }
	    public static void main(String args[]){ 
		Calculation3 add = new Calculation3();
 
		add.adding(12,8);
		add.adding2(10,8);
		add.adding3(8,8);
 
		}
	  
  }