Question

Write a JAVA program that allow a user to enter 2 number, starting point and end point. For example a user me enter 1 and

100. Your program will

Add numbers from 1 to 100, add all the even number, and add all the odd numbers

Output:

The sum of number 1 to 100 is:

The sum of even number 1 to 100 is:

The sum of odd number 1 to 100 is:

Answer 1

import java.util.Scanner;

public class AddNumbers {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter starting number: ");
        int start = in.nextInt();
        System.out.print("Enter ending number: ");
        int end = in.nextInt();
        int sum = 0, sumOdds = 0, sumEvens = 0;
        for (int i = start; i <= end; i++) {
            sum += i;
            if (i % 2 == 0) {
                sumEvens += i;
            } else {
                sumOdds += i;
            }
        }
        System.out.println("The sum of number " + start + " to " + end + " is: " + sum);
        System.out.println("The sum of even number " + start + " to " + end + " is: " + sumEvens);
        System.out.println("The sum of odd number " + start + " to " + end + " is: " + sumOdds);
    }
}