feat(4.3.4): Finish U4_L3_Activity_Four

101zh · Oct 27, 2023 · 3e13779 · 3e13779
1 parent a4859d4
commit 3e13779
Showing 1 changed file with 42 additions and 0 deletions.
diff --git a/src/main/java/Unit4/U4_L3_Activity_Four.java b/src/main/java/Unit4/U4_L3_Activity_Four.java
@@ -0,0 +1,42 @@
+package Unit4;
+
+import java.util.Scanner;
+
+public class U4_L3_Activity_Four {
+    public static void main(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("Enter a positive integer:");
+        int num = scanner.nextInt();
+
+        if (num > 0) {
+            for (int i = num; i >= 0; i--) {
+                if (i % 3 == 0) {
+                    System.out.print(i + " ");
+                }
+            }
+        } else {
+            System.out.println("error");
+        }
+
+        scanner.close();
+    }
+
+    public static void alternateAnswer(String[] args) {
+        Scanner scanner = new Scanner(System.in);
+
+        System.out.println("Enter a positive integer:");
+        int num = scanner.nextInt();
+        num = num - (num % 3);
+
+        if (num > 0) {
+            for (int i = num; i >= 0; i -= 3) {
+                System.out.print(i + " ");
+            }
+        } else {
+            System.out.println("error");
+        }
+
+        scanner.close();
+    }
+}