Here you can find the source of baseName(String filename)
public static String baseName(String filename)
//package com.java2s; /*// ww w . j a va2s.co m * Copyright 1999-2004 The Apache Software Foundation. * * 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 baseName(String filename) { return baseName(filename, "."); } public static String baseName(String filename, String suffix) { int lastDot = filename.lastIndexOf(suffix); if (lastDot >= 0) { filename = filename.substring(0, lastDot); } return filename; } }