Here you can find the source of getRandomColor()
public static String getRandomColor()
//package com.java2s; /*/* ww w . j ava 2 s . com*/ * Copyright (C) 2007-2008 Castafiore * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation; either version 3 * of the License, or (at your option) any later version. * * This program 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; public class Main { private static Random rand = new Random(); public static String getRandomColor() { Integer red = rand.nextInt(255); Integer blie = rand.nextInt(255); Integer yellow = rand.nextInt(255); String color = "#" + red.toHexString(red) + blie.toHexString(blie) + yellow.toHexString(yellow); return color; } }