package com.qf.part1;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
public class FileDemo1 {
public static void main(String[] args) throws IOException {
File file = new File("d:\QF\test");
String[] list = file.list();
for (String s : list) {
System.out.println(s);
}
System.out.println("--------------");
//myPrint(file);
myPrint2(file);
}
public static void myPrint(File dir){
File[] files = dir.listFiles();//方法一,未添加过滤方式
for (File file1 : files) {
if (file1.getName().endsWith(".java")){
System.out.println(file1.getAbsolutePath());
}else if (file1.isDirectory()){
myPrint(file1);
}
}
}
public static void myPrint2(File dir){
File[] files = dir.listFiles(new FileFilter() {//方法二,doFilter过滤方式
@Override
public boolean accept(File pathname) {
return pathname.getName().endsWith(".java")||pathname.isDirectory();
}
});//方法二,过滤方式
for (File file1 : files) {
if (file1.getName().endsWith(".java")){
System.out.println(file1.getAbsolutePath());
}else if (file1.isDirectory()){
myPrint(file1);
}
}
}
}