update,

it114105/itp3914/Lab09/Ex3.java

@@ -0,0 +1,16 @@
+import java.util.*;
+ 
+public class Ex3 {
+	public static void main(String [] args) {
+		Scanner kb = new Scanner(System.in);
+		System.out.print("? ");
+		int num = kb.nextInt();
+		countDown(num);
+	}
+ 
+	public static void countDown(int num) {
+		for (int i = num; i > 0; i--) 
+            System.out.print(i + " ");
+        System.out.println();
+	}
+}