Get the Name of the Parent Directory in Java

In this program, we will demonstrate how to retrieve the parent directory of a file using the File class in Java. The name of the parent directory of the file or directory can be obtained using the method getParent() method using the java.io package. This method returns the parent directory path name string or null if there is no parent named.

Steps to get the name of the parent directory

Following are the steps to get the name of the parent directory ?

• We will start by importing the java.io.File class.
• Create a File object with the specified path and file name in Java.
  
• Print the full file path using System.out.println().
  
• Use the getParent() method to retrieve and print the parent directory of the file.
  
• Display the parent directory in the output.

Java program to get the name of the parent directory

Below is the Java program that demonstrates this is given as follows ?

import java.io.File;
public class Demo {
   public static void main(String[] args) {
      File file = new File("C:" + File.separator + "jdk11.0.2" + File.separator, "demo1.java");
      System.out.println("File: " + file);
      System.out.println("Parent: " + file.getParent());
   }
}

Output

File: C:/jdk11.0.2/demo1.java
Parent: C:/jdk11.0.2

Code Explanation

In the given program first, we will import the File class from the java.io package after that we will create a File object with the path "C:/jdk11.0.2/demo1.java". The System.out.println("File: " + file) prints the full file path. Then, file.getParent() is used to retrieve the parent directory, which is printed as "C:/jdk11.0.2". If no parent exists, getParent() would return null.