Name a file in Java to include date and time stamp

Question

I am exporting data into a file in a Java application using NetBeans. The file will have a hard coded name given by me in the code. Please find below the code.

Answer 1

You can do something like that

Define your file name pattern as below :

private static final String FILE = "D:\Report_{0}.pdf";
private static final String DATE_PATTERN = "yyyy-MM-dd:HH:mm:ss";

The {0} is a marker to be replaced by the following code

private String formatFileName(Date timeStamp) {
        DateFormat dateFormatter = new SimpleDateFormat(DATE_PATTERN);
        String dateStr = dateFormatter.format(timeStamp);
        return MessageFormat.format(FILE, dateStr); 
}

For further information over date format you can see there and MessageFormat there