[Code application] The javaSE program recursively deletes the source code of the. bak file program in the folder.

[Code application] The javaSE program recursively deletes the source code of the. bak file program in the folder.

 

Author: sushengmiyan

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Now writing JavaScript code is used to writing code using editplus, but every time it is generated, a temporary editplus file is automatically generated. bak, it seems uncomfortable, so we simply write a delete program. When editplus is used to edit the code, double-clicking the jar file will save a lot of trouble.

A simple program contains some small processes for packaging and releasing jar files:

1. Create a project deletebakfiles

2. Create a project package com. susheng. deletebakfiles

3. Create a new class MainDelete under the package and type the code

The Code is as follows:

 

Package com. susheng. deletebakfiles; import java. io. file; // import javax. swing. JOptionPane; import javax. swing. JOptionPane; import com. susheng. deletebakfiles. util. getCurPath; public class MainDelete {// recursively delete all files in the specified path. public static void deleteBak (File file) {if (file. isFile () {if (file. getAbsolutePath (). endsWith (. bak) {// JOptionPane. showMessageDialog (null, file. getAbsolutePath (), current path, JOptionPane. INFORMATION_MESSAGE); file. delete () ;}} else {File [] files = file. listFiles (); for (File f: files) {deleteBak (f); // recursively Delete each File} public static void main (String [] args) {GetCurPath path = new GetCurPath (); String filePath = path. getCurPath (); File file = new File (filePath); deleteBak (file); JOptionPane. showMessageDialog (null, deleted successfully, current path, JOptionPane. INFORMATION_MESSAGE );}}

4. Create a new class GetCurPath under the com. susheng. deletebakfiles. util package.

 

Type Code

 

Package com. susheng. deletebakfiles. util; import javax. swing. JOptionPane; public class GetCurPath {public String getCurPath () {JOptionPane. showMessageDialog (null, System. getProperty (user. dir), current path, JOptionPane. INFORMATION_MESSAGE); // System. out. println (System. getProperty (user. dir); return System. getProperty (user. dir );}}

5. package it into a jar package. Release:

 

Select eclispe --- export -- java -- jar and choose the output directory "OK" at "next ".

 

Download the project code and jar package here:

Http://download.csdn.net/detail/sushengmiyan/7885807

Usage: place the jar file in bin in the folder to be deleted, and double-click to run it.

The current path is displayed in the dialog box:

Delete again. Wait until the deletion is completed.