How I can cause that program wait until press start button in Java?

Question

I'm making a game in Java with Swing. I created a start menu. I want the game to start when I press the start button.

I have a start button in my startScreen object. I want to add game object to my frame when I press.

I try very bad way:

while(startScreen.isVisible()){
        try {
            Thread.sleep(100);
        } catch (InterruptedException ex) {
            Logger.getLogger(Core.class.getName()).log(Level.SEVERE, null, ex);
        }
    }window.add(gameScreen);

What is the true way?

i dont see the usage of any button anywhere. Why do you use sleep? — f1sh, Mar 11 '20 at 18:44
Instead of making the program wait, why not start the function when the button is pressed? — MT756, Mar 11 '20 at 18:45
Without knowing much regarding your code structuring, you want to make sure your program's main loop is in a method that gets called when you select the start button. Any specific details would require further information on your part about your program's structuring and classes. — Tim Hunter, Mar 11 '20 at 18:49
See https://stackoverflow.com/questions/284899/how-do-you-add-an-actionlistener-onto-a-jbutton-in-java — admlz635, Mar 11 '20 at 18:50

score 0 · Answer 1 · answered Mar 11 '20 at 18:49

Depending on what type of 'button' you're referring to, your implementation may change. But, for example, using a JButton, you could register some action to do when the button is pressed. Something like:

button.addActionListener(event -> {
    // Do whatever it is that you're wanting to do in here...
    System.out.println("The button was pressed...");
});

How I can cause that program wait until press start button in Java?

1 Answers1