Java tutorial
//package com.java2s; /* * Copyright 2013-present Facebook, Inc. * * 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 { static String stripExtension(String fileName) { int index = fileName.lastIndexOf('.'); // if dot is in the first position, // we are dealing with a hidden file rather than an extension return (index > 0) ? fileName.substring(0, index) : fileName; } }