EndGamePrompt.java

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import java.awt.*;
import javax.swing.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

public class EndGamePrompt {
	private ButtonCommand command;
	private JFrame win;
	private JButton yesButton, noButton;
	private int result;

	public EndGamePrompt( String partyName ) {

		result = 0;
        
        win = new JFrame("Another Game for " + partyName + "?");
        win.getContentPane().setLayout(new BorderLayout());
        ((JPanel) win.getContentPane()).setOpaque(false);

        JPanel colPanel = new JPanel();
        colPanel.setLayout(new GridLayout(2, 1));

        // Label Panel
        JPanel labelPanel = new JPanel();
        labelPanel.setLayout(new FlowLayout());
        
        JLabel message = new JLabel("Party " + partyName + " has finished bowling.\nWould they like to bowl another game?");
        labelPanel.add(message);

        // Button Panel
        JPanel buttonPanel = new JPanel();
        buttonPanel.setLayout(new GridLayout(1, 2));

		EndGamePromptClickEvent listener = new EndGamePromptClickEvent();

        yesButton = createButton("Yes", listener);
        noButton = createButton("No", listener);

        buttonPanel.add(yesButton);
        buttonPanel.add(noButton);

        // Clean up main panel
        colPanel.add(labelPanel);
        colPanel.add(buttonPanel);

        win.getContentPane().add("Center", colPanel);

        win.pack();

        // Center Window on Screen
        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        win.setLocation((screenSize.width / 2) - (win.getSize().width / 2),
                (screenSize.height / 2) - (win.getSize().height / 2));
				win.setVisible(true);
	}
	private JButton createButton(String text, EndGamePromptClickEvent listener) {
        JButton button = new JButton(text);
        button.addActionListener(listener);
        return button;
    }
	
	public int getResult() {
		while ( result == 0 ) {
			try {
				Thread.sleep(10);
			} catch ( InterruptedException e ) {
				System.err.println( "Interrupted" );
			}
		}
		return result;	
	}
	public void setResult(int i) {
		result = i;
	}
	public void distroy() {
		win.setVisible(false);
	}

	public void setCommand(ButtonCommand command) {
        this.command = command;
    }
	public void buttonPressed() {
        command.execute();
    }
	public class EndGamePromptClickEvent implements ActionListener {

		public void actionPerformed(ActionEvent e) {
			if (e.getSource().equals(yesButton)) {		
				setCommand(new AgainGameCommand(EndGamePrompt.this));
			}
			if (e.getSource().equals(noButton)) {		
				setCommand(new EndGameCommand(EndGamePrompt.this));
			}
			buttonPressed();
		}
	}
	
}