SPYPARTY TUTORIALS THE TIMER UPDATE

TumbleItem applet uses a timer to update its display at regular intervals. Let's look at an example of using a timer to periodically update a component. SeeĬoncurrency in Swing for instructions about using the SwingWorker class and information on using Swing components in multi-threaded programs.

If the task might take a while to execute, then consider using a SwingWorker instead of or in addition to the timer. This means that the task can safely manipulate components, but it also means that the task should execute quickly. Note that the Swing timer's task is performed in the event dispatch thread. To start the timer, call its start method. If you want the timer to go off only once, you can invoke setRepeats(false) on the timer. When you create the timer, you also specify the number of milliseconds between timer firings. The actionPerformed method in this listener should contain the code for whatever task you need to be performed.

When you create the timer, you specify an action listener to be notified when the timer 'goes off'. However, you might use a general-purpose timer if you don't plan on touching the GUI from the timer, or need to perform lengthy processing.įor example, the tool tip manager uses Swing timers to determine when to show a tool tip and when to hide it.įor example, you might perform animation or update a component that displays progress toward a goal. In general, we recommend using Swing timers rather than general-purpose timers for GUI-related tasks because Swing timers all share the same, pre-existing timer thread and the GUI-related task automatically executes on the event-dispatch thread. While most espionage games have you spend your time shooting stuff, blowing stuff up, and driving fast, SpyParty has you hide in plain sight, deceive your opponent, and detect subtle behavioral tells to achieve your objectives. Do not confuse Swing timers with the general-purpose timer facility in the java.util package. What is SpyParty SpyParty is a spy game about human behavior, performance, perception, and deception. ) fires one or more action events after a specified delay.

Spyparty tutorials the timer