根据扩展名筛选文件

package com.test;

import java.io.File;
import java.io.FilenameFilter;
import java.util.Scanner;

public class FileTest2 {

public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner scanner = new Scanner(System.in);
System.out.println("请输入要访问的目录:");
String s = scanner.nextLine();
File dirFile = new File(s);
String[] allResults = dirFile.list();
for (String name : allResults) {
System.out.println(name);
}
System.out.println("输入文件扩展名:");
s = scanner.nextLine();
Filter_Name fileAccept = new Filter_Name();
fileAccept.setExtendName(s);
String[] results = dirFile.list(fileAccept);
for(String name : results) {
System.out.println(name);
}
}

}

class Filter_Name implements FilenameFilter {
String extendName;
public void setExtendName(String extendName) {
this.extendName = extendName;
}
@Override
public boolean accept(File arg0, String arg1) {

// TODO Auto-generated method stub
return arg1.endsWith(extendName);
}
}

根据扩展名筛选文件

原文：https://www.cnblogs.com/jdbn/p/9873146.html