Java文件操作（3）

package xz_file;

import java.io.File;
import java.io.IOException;

public class exFile {

    public static void main(String[] args) {
        File file = new File("C:/Users/xz/Workspaces/MyEclipse 9/xzLearn");
        listfile(file);
        
    }
    
    public static void listfile(File file) {
        File lf[] = file.listFiles();
        for (int i = 0; i < lf.length; i++) {
            if (lf[i] != null) {
                try {
                    if (lf[i].isFile()) {
                        System.out.println(lf[i].getName());
                    } else if(lf[i].isDirectory()){
                        System.out.println(lf[i].getName());
                        listfile(lf[i]);
                    }
                } catch (Exception e) {
                    // TODO: handle exception
                    System.out.println("文件类型出错！");
                }
            }
        }
    }
}

package xz_file;

import java.io.File;
import java.io.IOException;

public class exFile {

    public static void main(String[] args) {
        File file = new File("C:/Users/xz/Workspaces/MyEclipse 9/xzLearn/xz");
        DeleteFile(file);
        
    }
    
    public static void DeleteFile(File file) {
        File lf[] = file.listFiles();
        for (int i = 0; i < lf.length; i++) {
            if(lf[i].isDirectory()&&lf[i]!=null){
                DeleteFile(lf[i]);
            }else if(lf[i].isFile()){
                lf[i].delete();
            }else{
                lf[i].delete();
            }
                
        }
    }
}