Java : Wait for user input on swing window [duplicate]

Answer 1

you should be using events. your main class could listen for an event, if the button in the window is pressed. e.g.

public static void main(String[] args) {
   Window w = new Window();  
   w.getBtnNewButton().addActionListener(new ActionListener(){
      @Override
      public void actionPerformed(ActionEvent e) {
         System.out.println(w.getPin() + Arrays.toString(w.getPassword()) +  '1');
      }
   });  
}

in this case you have to make a public getter for the button, so you can access it from the main class.