1: //CountDownTime.java 3: public class CountDownTimer 4: { 5: public static void countDown(int countInt) 6: { 7: if (countInt <= 0) 8: { 9: System.out.println("GO!"); 10: } 11: else 12: { 13: System.out.println(countInt); 14: countDown(countInt - 1); 15: } 16: } 18: public static void main (String[] args) 19: { 20: countDown(2); 21: } 22: }