Here you can find the source of random(int min, int max)
public static int random(int min, int max)
//package com.java2s; /******************************************************************************* * Copyright (c) 2013 Folke Will <folke.will@gmail.com> * * This file is part of JPhex.// w w w . j a va 2 s.c o m * * JPhex is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * JPhex is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. ******************************************************************************/ import java.util.Random; import java.util.concurrent.ThreadLocalRandom; public class Main { public static int random(int min, int max) { Random rng = ThreadLocalRandom.current(); return rng.nextInt(max - min) + min; } }