How to print the last modification time of a directory in Java

Problem Description

How to print the last modification time of a directory?

Solution

Following example demonstrates how to get the last modification time of a directory with the help of file.lastModified() method of File class.

import java.io.File;
import java.util.Date;

public class Main {
   public static void main(String[] args) {
      File file = new File("C://FileIO//demo.txt");
      System.out.println("last modifed:" + new Date(file.lastModified()));
   }
}

Result

The above code sample will produce the following result.

last modifed:10:20:54

The following is an another sample example of the last modification time of a directory in Java

import java.io.File;
import java.io.IOException;
import java.io.File;
import java.text.SimpleDateFormat;

public class Main { 
   public static void main(String[] args) { 
      File f1 = new File("C:\\Users\\TutorialsPoint7\\Desktop\\bbc.txt");
      System.out.println("Before Format : " + f1.lastModified());
      SimpleDateFormat sdf = new SimpleDateFormat("MM/dd/yyyy HH:mm:ss");
      System.out.println("After Format : " + sdf.format(f1.lastModified()));
   } 
}

The above code sample will produce the following result.

Before Format : 1479278446484
After Format : 11/16/2016 12:10:46