Java tutorial
//package com.java2s; /* * Copyright 2007 Yusuke Yamamoto * * 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 replaceLast(final String text, final String regex, final String replacement) { if (text == null || regex == null || replacement == null) return text; return text.replaceFirst("(?s)" + regex + "(?!.*?" + regex + ")", replacement); } }