Pausing Swing GUI

Question

Hy! So I\'m starting with netbeans java gui development and I have run into this problem:

I have made a window with a button and a text field. When the user clicks t

Answer 1

If you use Thread.sleep(...) or any other code that delays the Swing event thread, you'll end up putting the entire Swing event thread to sleep, and with it your application. The key here is to instead use a Swing Timer. In the Timer's ActionListener's actionPerformed method, add a letter and increment your index, and then use that index to decide what letter to next add.

i.e.,

String helloString = "hello";

// in the Timer's ActionListener's actionPerformed method:
if (index >= helloString.length()) {
  // stop the Timer here
} else {
  String currentText = textField.getText();
  currentText += helloString.charAt(index);
  textField.setText(currentText);
  index++;
}