Here you can find the source of getFilename(File file)
public static String getFilename(File file)
//package com.java2s; /* ==================================================================== Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You 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.//from w w w . j a v a2s . c o m ==================================================================== */ import java.io.File; public class Main { /** * Get file name from the specified File object. */ public static String getFilename(File file) { if (file != null) { String path = file.getPath(); int len = path.length(); int num2 = len; while (--num2 >= 0) { char ch1 = path.charAt(num2); if (ch1 == File.separatorChar) return path.substring(num2 + 1, len); } } return ""; } }