Here you can find the source of rgbToHex(int[] rgb)
public static String rgbToHex(int[] rgb)
//package com.java2s; /******************************************************************************* * Copyright (c) 2014,2015 Hideki Yatomi * All rights reserved. This program and the accompanying materials are made * available under the terms of the Eclipse Public License v1.0 which * accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html ******************************************************************************/ public class Main { public static String rgbToHex(int[] rgb) { return String.format("%02x%02x%02x", rgb[0], rgb[1], rgb[2]); }/*from w ww . j a va2 s .c o m*/ }