文件与目录Java实现

//FileUtils.java
package cn.campsg.java.experiment.utils;

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

public class FileUtils {
    public FileUtils() {
    }

    public void dirsOperate(String dirPath){
        File dfile = new File(dirPath);
        if (dfile.isDirectory()) {

            String[] flist = dfile.list();

            for (String f : flist)

                System.out.println(f);

        } else {//创建多层目录

            System.out.println("目录创建是否成功：" + dfile.mkdirs());

        }
    }

    public void fileOperate(String filename){
        File file = new File(filename);
        if (file.exists()) {

            System.out.println("文件路径：" + file.getPath());

            System.out.println("文件名：" + file.getName());

            System.out.println("是否可执行文件：" + file.canExecute());

        }
        else
        {
            try {

                System.out.println("成功创建文件：" + file.createNewFile());

            } catch (IOException e) {

                System.out.println("创建文件失败："+filename+"错误原因："+e.getMessage());

            }
        }
    }
}

//MainClass.java
package cn.campsg.java.experiment;

import cn.campsg.java.experiment.utils.FileUtils;

import java.io.File;

public class MainClass {
    public static void main(String[] args) {
        String userdir=System.getProperty("user.dir");
        System.out.println("系统用户目录："+userdir);
        String dir = userdir+ File.separator+"logs"+File.separator+"xp";

        FileUtils fu = new FileUtils();
        fu.dirsOperate(dir);
        String filename = dir+File.separator+"xtest.txt";
        fu.fileOperate(filename);
    }
}