File之FilenameFilter使用
package test;import java.io.*;import java.util.Arrays;/** * File and FilenameFilter 类使用 * @author DuDu * */public class FileTest {public static void main(String[] args) {final String path = "D:\\好玩的";File file = new File(path);String[] files = file.list(new DireFilter(".txt"));Arrays.sort(files);for(String dirName : files){System.out.println(dirName);}}}/** * File 过滤器 * @author DuDu * */class DireFilter implements FilenameFilter{private String regex;public DireFilter(String regex){this.regex = regex ;}public boolean accept(File dir, String name) {if(name.endsWith(regex))return true;else return false;}}