OOD-JAVA program #2

1.Create a program that will ask the user to enter the first number and second number. The program should give the sum and the difference of the 1st and 2nd number.
Example:

Enter the first number :
Enter the second number :
Sum :
Difference :


Source Code :

import java.util.Scanner;
public class SumAndDifference {

    static Scanner sc = new Scanner(System.in);
    public static void main(String [] args)
    {
       //the user will declare two numbers, so we have to create variables first.

       double N1;
       double N2;

       //variables are created
       //the program will ask the user to enter the first number

        System.out.print("Enter the first number : ");
        N1 = sc.nextDouble();

        //the N1 has been declared
        //the program will ask the user to enter the second number

        System.out.print("Enter the second number : ");
        N2 = sc.nextDouble();
        //both variables has been declared

        //the program will compute the two numbers
        double sum = N1 + N2;
        double difference = N1 - N2;

       //output of the program
        System.out.println("Sum : " + sum);
        System.out.println("Difference : " + difference);
    }
}

OUTPUT:

Enter the first number : 17
Enter the second number : 15
Sum : 32.0
Difference : 2.0