Question

Write a program that uses while loops and perform the following steps:

1) Prompt the user to input two integers: start and end (start must be less than end).

2) Output the average of the even numbers between start and end.

Answer 1

import java.util.Scanner;
public class Main
{
	public static void main(String[] args) {
	    Scanner input = new Scanner(System.in);
	    	System.out.println("Enter the start integer");
	    int start = input.nextInt();
	    System.out.println("Enter the end integer");
	    int end = input.nextInt(); 
		if(end>start){
		    int i = start;
		    int count =0;
		    double sum =0.0;
		    while(i<=end){
		        if(i%2==0){
		            sum += i;
		            count ++;
		        }
		        i++;
		    }
		    System.out.println("The average of even numbers is  "+sum/count);
		}
		else{
		    System.out.println("Invalid start and end integers  ");
		}
	}
}