class DispTask extends Thread {
	boolean doYield;
	String mark;

	DispTask(boolean _doYield, String _mark) {
		doYield = _doYield;
		mark = _mark;
	}

	public void run() {
		for (int i = 0; i < 10; i++) {
			System.out.println(i + ">" + mark);

			if (doYield)
				yield();
		}
	}
}