File 随笔 ( 3 )

package www.KINDA.com.cn.io;

import java.io.File;
import java.io.FileFilter;

public class FileDemo3 {

public static void main(String[] args) {
/**
* 查看当前根目录下,所有名字以"."开头的子项
*/
File dir = new File(".");
/**
* FileFilter接口
*/
File[] subs = dir.listFiles(new FileFilter(){
@Override
public boolean accept(File file) {
System.out.println("检查"+file.getName());
String fileName = file.getName();
return fileName.startsWith(".");
}});
for( File sub : subs )
{
System.out.println("子项："+sub.getName());
}

}

}