Here you can find the source of rgbToString(float r, float g, float b)
public static String rgbToString(float r, float g, float b)
//package com.java2s; /*// w ww . ja v a2 s . c om * Copyright 2011 gitblit.com. * * 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 String rgbToString(float r, float g, float b) { String rs = Integer.toHexString((int) (r * 256)); String gs = Integer.toHexString((int) (g * 256)); String bs = Integer.toHexString((int) (b * 256)); return "#" + rs + gs + bs; } }