The user has to remove the placeholder text when entering time

[GammaBurst101]

When a user wants to set the timer for , say 2min, then he has to remove the "Hr", replace the "Min" with "2" and "Sec" with "0" otherwise ​the timer won't work.

Suggestion

The app should remove the placeholder text when a user clicks on it

[GammaBurst101]

We can add an event listener to listen for click event inside the JTextField s. When the event is fired, the code should set the text of the JTextField to "" (blank)