Package a6

Class GameMain

java.lang.Object

a6.GameMain

public class GameMain
extends Object

Main class for Click-a-Dot game. Creates window with game board, score label, start button, and sliders for target size and speed.

Constructor Summary

Constructors

Constructor	Description
GameMain()

Method Summary

Modifier and Type	Method	Description
private static void	addSliderLabels(JSlider slider, String minLabel, String maxLabel)	Label `slider`'s minimum value with `minLabel` and its maximum value with `maxLabel`.
private static void	createAndShowGUI()	Create application window.
static void	main(String[] args)	Start the application.
private static JComponent	makeSliderPanel(JSlider slider, String title)	Place `slider` in a new padded panel with top label `title` and return the panel.
private static void	saveScore(JFrame frame, int score)	Append a line containing `score` to a user-selected file, using `frame` as the parent of any dialogs.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GameMain

public GameMain()

Method Details

main

public static void main(String[] args)

Start the application.

createAndShowGUI

private static void createAndShowGUI()

Create application window.

• Window title is "Click-a-Dot"
• Game board is in center of window, expands to fill window size
• Score label is at top; text is centered
• Start button is at bottom
• Size slider is at right
• Speed slider is at left

Window should be disposed when closed, and all game tasks stopped. This should be sufficient for application to shut down gracefully.

addSliderLabels

private static void addSliderLabels(JSlider slider,
 String minLabel,
 String maxLabel)

Label `slider`'s minimum value with `minLabel` and its maximum value with `maxLabel`.

makeSliderPanel

private static JComponent makeSliderPanel(JSlider slider,
 String title)

Place `slider` in a new padded panel with top label `title` and return the panel.

saveScore

private static void saveScore(JFrame frame,
 int score)

Append a line containing `score` to a user-selected file, using `frame` as the parent of any dialogs. Show an error dialog if a problem occurs when writing the file.