Java tutorial
//package com.java2s; /* * Copyright 2013 Wajdi Hh "wajdihh@gmail.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. */ import java.util.regex.Matcher; import java.util.regex.Pattern; public class Main { /** * to validate Hex format * @author wajdihh * * @param pHex * * @return true is validate */ public static boolean isValidHex(String pHex) { Pattern lPattern = Pattern.compile("^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$"); Matcher lMatcher = lPattern.matcher(pHex); return lMatcher.matches(); } }