Monday, 14 November 2016

Java Tutorial : Java IO (Java File - How to Change the file last modified date)


Click here to watch in Youtube :
https://www.youtube.com/watch?v=ObeCawn_tJY&list=UUhwKlOVR041tngjerWxVccw

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

public class FileDemo
{

    public static void main(String[] args) throws IOException, ParseException
    {
        File file = new File("D:/work/myfile.txt");

        long lastModified = file.lastModified();
        System.out.println("Before Format : " + lastModified);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(
                "MM/dd/yyyy HH:mm:ss");

        String formatedStr = simpleDateFormat.format(lastModified);
        System.out.println("After Format,old lastModified : " + formatedStr);

        /*
         * Sets the last-modified time of the file or
         * directory named by this abstract pathname.
         */
        file.setLastModified(System.currentTimeMillis());

        lastModified = file.lastModified();
        formatedStr = simpleDateFormat.format(lastModified);
        System.out.println("After Format,new lastModified : " + formatedStr);
    }

}
Output
Before Format : 1477195340491
After Format,old lastModified : 10/23/2016 09:32:20
After Format,new lastModified : 10/23/2016 09:34:20
Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/JavaIODemo_File_change_lastModified_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/JavaIODemo_File_change_lastModified_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/a3d05269db9922e504bb1f9de8d07031990c9910/BasicJava/JavaIODemo_File_change_lastModified_App/?at=master

See also:

  • All JavaEE Viedos Playlist
  • All JavaEE Viedos
  • All JAVA EE Links
  • Servlets Tutorial
  • All Design Patterns Links
  • JDBC Tutorial
  • Java Collection Framework Tutorial
  • JAVA Tutorial
  • Kids Tutorial
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