String to hh:mm:ss and Check it

Question

I create a Jdialog that I wish that it could input time of someone entering in my house.
I use jTextField2.getText() to get the String.
How could I check if it is "hh:mm:ss" format?
and would you like to tell me the standard method in Java to deal this kind of problem?
which tutorial I should read?
thank you a lot.

Answer 1

Hi
I suggest to use regular expression:
import java.util.regex.*; // J2SE 1.4
String tt = jTextField2.getText();
// check string against time pattern
boolean valid = tt.matches("^([01][0-9]|2[0-3])(:([0-5][0-9])){2}$");
or read documentation about DateFormat and/or SimpleDateFormat and try to parse string.
Regards.