The Java Developers Almanac 1.4

e26. Getting and Setting the Modification Time of a File or Directory

    File file = new File("filename");
    
    // Get the last modified time
    long modifiedTime = file.lastModified();
    // 0L is returned if the file does not exist
    
    // Set the last modified time
    long newModifiedTime = System.currentTimeMillis();
    boolean success = file.setLastModified(newModifiedTime);
    if (!success) {
        // operation failed.
    }

Related Examples

e19. Determining If a File or Directory Exists
e20. Creating a File
e21. Getting the Size of a File
e22. Deleting a File
e23. Creating a Temporary File
e24. Renaming a File or Directory
e25. Moving a File or Directory to Another Directory
e27. Forcing Updates to a File to the Disk

See also: Directories    Encodings    Filenames and Pathnames    Parsing    Reading and Writing    Serialization

© 2002 Addison-Wesley.