Method trigger

src/org/opensourcephysics/display/OSPRuntime.java:2371–2376

Create a simple one-time Timer and start it. @param ms @param a @return

(int ms, ActionListener a)

	 * @return
	 */
	public static Timer trigger(int ms, ActionListener a) {
		Timer timer = new Timer(ms, a);
		timer.setRepeats(false);
		timer.start();
		return timer;
	}

	/**
	 * Displays a JColorChooser and returns the selected color.