add main for Q7

1 files changed, 11 insertions, 0 deletions

diff --git a/src/Q7/HailstoneSequence.java b/src/Q7/HailstoneSequence.java
index 636294a..926665d 100644
--- a/src/Q7/HailstoneSequence.java
+++ b/src/Q7/HailstoneSequence.java
@@ -9,6 +9,7 @@
 package Q7;
 
 import java.util.ArrayList;
+import java.util.Scanner;
 
 public class HailstoneSequence {
   /**
@@ -35,4 +36,14 @@ public class HailstoneSequence {
     else if (n % 2 == 0) return getHailstoneSequence(n / 2, items);
     else return getHailstoneSequence((n * 3) + 1, items);
   }
+
+  public static void main(String[] args) {
+    Scanner in = new Scanner(System.in);
+
+    System.out.print("Please enter seed for hailstone sequence: ");
+    ArrayList<Integer> sequence = HailstoneSequence.getHailstoneSequence(in.nextInt());
+    for (Integer i : sequence) System.out.println(i);
+
+    for (Integer i : sequence) System.out.print("-");
+  }
 }