FilenameFilter文件过滤

import java.io.File;import java.io.FilenameFilter;public class A {    public static void main(String[] args) {         File file = new File("E:/workspace/aaa/src");         File[] listFiles = file.listFiles(new MyFileter());         for(File f : listFiles){             System.out.println(f.getName());         }    }    static class MyFileter implements FilenameFilter {        @Override        public boolean accept(File file, String filename) {            if (filename != null && filename.toLowerCase().endsWith(".java")) {                return true;            } else {                return false;            }        }    }}