Adding values in a loop fixed

import java.util.Scanner;

public class addingvaluesinafoorloop {

    private static Scanner keyboard;

    public static void main(String[] args) {
        keyboard = new Scanner(System.in);
        System.out.print("Number:");
        int number = keyboard.nextInt();
        int sum = 0;

        for (int defined_number = 1; defined_number <= number; defined_number++ )
        {
            System.out.println(defined_number);
            sum = sum + defined_number;

        }
        System.out.println("The Sum is "+ sum);
    }

}