touch file using apache commons io example

This is an example of how to touch a file. We will make use of the class, that provides file manipulation utilities. Touching a file implies that you should:

  • Create a new File by converting the pathname string of the file into an abstract pathname.
  • Use lastModified() API method of File that returns the time that the file denoted by this abstract pathname was last modified.
  • Use touch(File file) method of, that implements the same behaviour as the “touch” utility on Unix, changing the date and time stamps.

Let’s take a look at the code snippet that follows:

package com.javacodegeeks.snippets.core;
public class TouchFile {
  public static void main(String[] args) {
    try {  

  // we take a reference to an actual file on disk

  File testFile = new File("test.txt");

  // we take a reference of the file last modification date/time

  long fileTimestamp = testFile.lastModified();

  // using the touch() operation we change the file date and time stamps


  System.out.println("File date / time was updated : " + (testFile.lastModified() > fileTimestamp));

    } catch (IOException ex) {



File date / time was updated : true

This was an example of how to touch a file.

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Byron Kiourtzoglou

Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.
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