Java Number Sum sumFromNtoM(int n, int m)

Here you can find the source of sumFromNtoM(int n, int m)

Description

Returns the sum from n to m (Ex: n = 1, m = 3 => 1 + 2 + 3 = 6)

License

Open Source License

Declaration

public static int sumFromNtoM(int n, int m)

Method Source Code

//package com.java2s;
//License from project: Open Source License 

public class Main {
    /**/* w w  w .  j a va2 s  . co  m*/
     * Returns the sum from n to m (Ex: n = 1, m = 3 => 1 + 2 + 3 = 6)
     */
    public static int sumFromNtoM(int n, int m) {
        return Math.abs(m - n + 1) * (m + n) / 2;
    }
}

Related