Here you can find the source of minmax(double[] a)
public static double[] minmax(double[] a)
//package com.java2s; /**//w w w . java2 s.c o m * * Copyright 2017 Florian Erhard * * 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 double[] minmax(double[] a) { double[] re = { a[0], a[0] }; for (double i : a) { if (i > re[1]) re[1] = i; else if (i < re[0]) re[0] = i; } return re; } public static float[] minmax(float[] a) { float[] re = { a[0], a[0] }; for (float i : a) { if (i > re[1]) re[1] = i; else if (i < re[0]) re[0] = i; } return re; } public static int[] minmax(int[] a) { int[] re = { Integer.MAX_VALUE, Integer.MIN_VALUE }; for (int i : a) { if (i > re[1]) re[1] = i; else if (i < re[0]) re[0] = i; } return re; } public static long[] minmax(long[] a) { long[] re = { Long.MAX_VALUE, Long.MIN_VALUE }; for (long i : a) { if (i > re[1]) re[1] = i; else if (i < re[0]) re[0] = i; } return re; } }