Java删除文件或目录示例

在此示例中，我们将展示如何使用File类的delete()方法删除文件或目录。 如果文件或目录已成功删除，则delete()方法返回true; 否则返回false。

下面是File.delete()的一个例子。

文件：DeleteFileDirectoryExample.java –

package com.yiibai.tutorial.io;  import java.io.File;  /**  * @author yiibai  * DeleteFileDirectoryExample.java  * Nov 2, 2016  */ public class DeleteFileDirectoryExample {     public static void main(String[] args) {          /*Delete single file*/         System.out.println("-------------Deleting single file--------------");         File file=new File("test.txt");         if(file.exists()){             if(file.delete()){                 System.out.println("File deleted successfully");             }else{                 System.out.println("Fail to delete file");             }         }          System.out.println("/n-------------Deleting multiple files--------------");         /*Delete all files in directory*/         File folder=new File("folder");         if(folder.exists() && folder.isDirectory()){              for (File f : folder.listFiles()) {                 if(f.delete()){                     System.out.println("'"+f.getName()+"' deleted successfully");                 }else{                     System.out.println("Fail to delete '"+f.getName()+"'");                 }             }         }          /*Delete folder*/         System.out.println("/n-------------Deleting folder--------------");         if(folder.exists() && folder.isDirectory()){             if(folder.delete()){                 System.out.println("Folder deleted successfully");             }else{                 System.out.println("Fail to delete folder");             }         }     } } 

执行上面示例代码，得到以下结果：

-------------Deleting single file-------------- File deleted successfully  -------------Deleting multiple files-------------- 'test.txt' deleted successfully 'test2.txt' deleted successfully 'test3.txt' deleted successfully 'test4.txt' deleted successfully 'test5.txt' deleted successfully 'test6.txt' deleted successfully 'test7.txt' deleted successfully  -------------Deleting folder-------------- Folder deleted successfully