在Java程序中，如何获取文件的父目录或上级目录？
以下示例显示如何使用File类的file.getParent()方法获取文件的父目录。
package com.yiibai; import java.io.File; public class ParentDirectory { public static void main(String[] args) { File file = new File("F:\worksp\javaexamples\java_directories\myfile.txt"); String strParentDirectory = file.getParent(); System.out.println("Parent directory is : " + strParentDirectory); } }
执行上面示例代码，得到以下结果 –
Parent directory is : F:workspjavaexamplesjava_directories
示例-2
以下是Java中获取文件的父目录或所在目录的另一个示例。
package com.yiibai; import java.io.File; import java.util.Scanner; public class ParentDirectory2 { public static void main(String args[]) { Scanner scanner = new Scanner(System.in); System.out.println("Enter the file path: "); String filePath = scanner.next(); File fileToTest = new File(filePath); if (!fileToTest.isDirectory()) { System.out.println("This is File"); System.out.println("Parent Folder of this file is :" + fileToTest.getParent()); } else { System.out.println("This is Directory"); System.out.println("Parent Folder of this directory is :" + fileToTest.getParent()); } } }
执行上面示例代码，得到以下结果 –
Enter the file path: F:workspjavaexamplesjava_directories This is Directory Parent Folder of this directory is :F:workspjavaexamples
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