Here you can find the source of splitLast(String target, String pattern)
public static String[] splitLast(String target, String pattern)
//package com.java2s; /*/*from w w w . j av a 2s . c o m*/ Copyright (C) 2012 Akira Midorikawa This program is free software: you can redistribute it and/or modify it under the terms of the GNU 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/>. */ public class Main { public static String[] splitLast(String target, String pattern) { int index = target.lastIndexOf(pattern); if (index == -1) { throw new RuntimeException("Pattern is not found."); } return new String[] { target.substring(0, index), target.substring(index + 1) }; } }