package com.zh.test;

import java.io.File;
import java.io.FilenameFilter;

public class Test2 {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        File f = new File("D:/java");
        //过滤以“Ex”开头的文件和目录，存放到字符串数组s中。 
        String s[] = f.list(new JavaFilter("Ex"));
        for(int i=0;i<s.length;i++){
            File ff = new File("D:/java/"+s[i]);
            if(ff.isDirectory()){
                System.out.println(s[i]+" is a directory");
            }else{
                System.out.println(s[i]+" is a file");
            }
        }
    }
}
//FilenameFilter 过滤器文件名
class JavaFilter implements FilenameFilter{
    String jf;
    public JavaFilter(String s){
        jf = s;
    }
    //测试指定文件是否应该包含在某一文件列表中
    public boolean accept(File dir, String name) {
        // TODO Auto-generated method stub
        return name.startsWith(jf);
    }
}