1: public class RecursiveCountdown 2: { 3: public static void main(String[] args) 4: { 5: countDown(3); 6: } 7: 8: public static void countDown(int num) 9: { 10: if (num <= 0) 11: { 12: System.out.println(); 13: } 14: else 15: { 16: System.out.print(num); 17: countDown(num - 1); 18: } 19: } 20: }