Question

Create a class Calculator with two variables, a constructor with no parameter and

two functions for add and multiply. Add functionality for overloading sum and

multiply. Also call scientific functions using Math class (sine, cos, tan and power).

Create a class TestApp with a main function and create object of Calculator class to

call functions.

Answer 1

package calculator;
class Calculator{
    private int first, second;
    public Calculator(){
        
    }
    
    public void sum(int f, int s){
       first = f;
       second = s;
        System.out.println("The sum is  "+ first+second);
    }
    
    public void sum(int f, int t, String m){
         first = f;
       second = t;
       m= "Multiplication of "+f+" and "+t+" is ";
        System.out.println(m +" "+f*t);
    }
    
}
public class TestApp  {


    
    public static void main(String[] args) {
      Calculator c = new Calculator();
      c.sum(10, 20);
      c.sum(20, 50, "");
    }
    
}