help with problem

[sir_thaddeus]

Design and implement an application that reads an integer value and prints the //sum of all even integers between 2 and the input value, inclusive. Print an error message //if the input value is less than 2. Prompt accordingly.

Right now for the following problem i have this:

import java.util.Scanner;

public class Multiples
{
//-----------------------------------------------------------------
// Prints multiples of a user-specified number up to a user-
// specified limit.
//-----------------------------------------------------------------
public static void main (String[] args)
{
final int PER_LINE = 1;
int value, limit, mult, count = 0;

Scanner scan = new Scanner (System.in);

System.out.print ("Enter a value: ");
value = scan.nextInt();


limit = scan.nextInt();
mult = scan.nextInt();

System.out.println ();
System.out.println ("The sum of the even numbers between 2 and " + mult + " (inclusive) are:");

for (mult = value; mult <= limit; mult+= value)
{
System.out.print (mult + "\t");
count++;
if (count % PER_LINE == 0)
System.out.println();
}


}
}

as of right now all i can do is enter the value, hit return andnothing happens.

how can i after entering the value, it adds up all the even numbers between 2 and the value entered?

[JGRobinson]

Hi,

I'm not really sure exactly what all of the variables where for, but based on the initial question here is a solution.

package test;

import java.util.Scanner;

public class Main
{
    //-----------------------------------------------------------------
    // Prints multiples of a user-specified number up to a user-
    // specified limit.
    //-----------------------------------------------------------------
    public static void main(String[] args)
    {
        int limit = 0;
        int sum   = 0;
        
        Scanner scan = new Scanner(System.in);
        
        System.out.print("Enter a Limit: ");
        limit = scan.nextInt();
        
        System.out.println();
        System.out.println("The sum of the even numbers between 2 and " + limit + " (inclusive) are:");
        
        for (int count = 1; count <= limit; count++)
        {
            // Only add if even
            
            if((count & 1)!= 1)
            {
                sum+=count;
                System.out.println(count);
            }
        }
        System.out.println("The sum is " + sum);
        
    }
}

run it using java test/Main from an command window

Hope this helps
Cheers
Graham