Implementations[edit]

Java[edit]

    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.
    }

• Original Source: The Java Developers Almanac 1.4

Ruby[edit]

fname = "file_name"
# Get the last access time and the last modified time
puts atime = File.atime(fname)          # last access time
puts mtime = File.mtime(fname)          # modification time

# Set the last modified time
mtime = Time.now
File.utime(atime, mtime, fname)