Java tutorial
//package com.java2s; /** * Copyright 2014 Zhenguo Jin * <p/> * 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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. */ import java.io.File; import java.io.FileFilter; public class Main { public static FileFilter getFileFilter(final String reg, boolean isdir) { if (isdir) { return new FileFilter() { @Override public boolean accept(File pathname) { return pathname.getAbsolutePath().toLowerCase().matches(reg) || pathname.isDirectory(); } }; } else { return new FileFilter() { @Override public boolean accept(File pathname) { return pathname.getAbsolutePath().toLowerCase().matches(reg) && pathname.isFile(); } }; } } }