Interface Implementation – Calculator


Interface Implementation – Calculator



The interface Calculator.java is given below. Define the class SimpleCalculator.java so that it implements the interface Calculator and the program prints the desired output.
public interface Calculator {
   int add(int x, int y);   
   int subtract(int x, int y);
   int multiply(int x, int y);
   int divide(int x, int y);

The invoking class with the main method is given below.
import java.util.*;
 
public class Hello {
 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int x = sc.nextInt();
        int y = sc.nextInt();
         
        Calculator calc = getCalculator();
        System.out.println(calc.add(x, y));
        System.out.println(calc.subtract(x, y));
        System.out.println(calc.multiply(x, y));
        System.out.println(calc.divide(x, y));
      
    }
 
    private static Calculator getCalculator() {
        return new SimpleCalculator();
    }
 
}
Input Format:
The first line contains x.
The second line contains y.
Output Format:
The first line contains the sum of x and y.
The second line contains the difference between x and y.
The third line contains the product of x and y.
The fourth line contains the quotient when x is divided by y.
Boundary Conditions:
1 <= N1 <= 9999
1 <= N2 <= 9999

Example Input/Output 1:
Input:
5
2
Output:7
3
10
2

Code:

public class SimpleCalculator implements Calculator {
    public int add(int x,int y)
    {
        return x+y;
    }
    public int  subtract(int x,int y)
    {
        return x-y;
    }
public int multiply(int x,int y)
{
    return x*y;
}
public int divide(int x,int y)
{
    return x/y;
}
   
}

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