This is an example of how to touch a file. We will make use of the org.apache.commons.io.FileUtils 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 oforg.apache.commons.io.FileUtils, 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:
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 | package com.javacodegeeks.snippets.core; import java.io.IOException;import org.apache.commons.io.FileUtils;import java.io.File; 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 FileUtils.touch(testFile); System.out.println("File date / time was updated : " + (testFile.lastModified() > fileTimestamp)); } catch (IOException ex) { ex.printStackTrace(); } }} |
Output:
File date / time was updated : true
This was an example of how to touch a file.
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