Java Number Sum sumLange(int _a, int _b)

Description

sum Lange

License

Open Source License

Declaration

public static int sumLange(int _a, int _b) 

Method Source Code

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

public class Main {

    public static int sumLange(int _a, int _b) {
        int a = _a;
        int b = _b;

        if (_a > _b) {
            b = _a;//w  ww .j a  v a 2  s .  co  m
            a = _b;
        }

        return (a + b) * (b - a + 1) / 2;
    }
}

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