文件名过滤器FilenameFilter的用法

package cn.test;

import java.io.File;
import java.io.FilenameFilter;
import org.junit.Test;

public class Demo4  {
	@Test
	public void test1(){
		File file = new File("D:/Temp");
		FilterBysuffix filter = new FilterBysuffix(".txt");
		String[] files = file.list(filter);
		for (String fileName : files){
			System.out.println(fileName);
		}
	}
}


 class FilterBysuffix implements FilenameFilter{
	private String suffix;
	public FilterBysuffix(String suffix){
		this.suffix=suffix;
	}
	@Override
	public boolean accept(File dir, String name) {
		return name.endsWith(suffix);
	}
}