Here you can find the source of max(Iterable
public static double max(Iterable<Double> iterable)
//package com.java2s; /*/*from ww w.j a v a 2s . c o m*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 */ import java.util.Iterator; public class Main { public static double max(Iterable<Double> iterable) { Iterator<Double> iterator = iterable.iterator(); double max = Double.MIN_VALUE; while (iterator.hasNext()) { double d = iterator.next(); if (d > max) { max = d; } } return max; } }