Wait For A Button Press

Question

Hey, I am currently creating a game and need to know how to wait for a certain button to be pressed. A popup message comes up that tells the user to press a button, then I need to wait for the button to be pressed. Then once the button is pressed, I want another message to come up. The problem is, I have no idea how to wait for a button press after the first message comes up. Instead it just displays the first message, then the second directly after.
Thanks

Answer 1

So you have a button that is always present. Normally clicking the button does nothing. But sometimes a message shows up, in which case if the user clicks the button, something happens. Right?
UI principles aside (it's bad form to display a button that does nothing), this is pretty simple.
Create a field to track whether the button does anything. For example:
private boolean buttonActive = false;In your action listener for that button, first check the value:
public void actionPerformed(ActionEvent e) {
    if (buttonActive) {
        // do your thing
}If the buttonActive is true, it does something, otherwise it does nothing.
After you display the message, set buttonActive to true. When you want the button to become a brick again, set it to false.