Here you can find the source of max(List
public static <T extends Number> T max(List<T> numbers)
//package com.java2s; /**/*ww w .ja v a 2 s .co m*/ * Copyright 2014 CMBI (contact: <Coos.Baakman@radboudumc.nl>) * * 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. */ import java.util.List; public class Main { public static <T extends Number> T max(List<T> numbers) { T highest = numbers.get(0); for (T n : numbers) { if (n.doubleValue() > highest.doubleValue()) { highest = n; } } return highest; } }