Here you can find the source of sum(int[] values, int startIndex, int stopIndex)
public static int sum(int[] values, int startIndex, int stopIndex)
//package com.java2s; /*//from w w w .j av a2 s . c o m * Copyright 2016 Roche NimbleGen Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ public class Main { public static int sum(int[] values) { int sum = 0; for (int value : values) { sum += value; } return sum; } public static int sum(int[] values, int startIndex, int stopIndex) { int sum = 0; for (int i = startIndex; i <= stopIndex; i++) { int value = values[i]; sum += value; } return sum; } public static double sum(double[] values) { double sum = 0; for (double value : values) { sum += value; } return sum; } public static double sum(long[] values) { long sum = 0; for (long value : values) { sum += value; } return sum; } }