Reverse a number if it is odd

Odd_Reverse.java

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+/* Take a number. If it odd then reverse it, otherwise print "Can not reverse"
+ * 
+ * Input : 123
+ * Output : 321
+ * 
+ * Input : 234
+ * Output : Can not reverse
+ */
+
+ import java.util.*;
+ public class Odd_Reverse
+ {
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+        int num = sc.nextInt();
+        if(num%2==0)
+        {
+            System.out.println("Can't reverse");
+        }
+        else
+        {
+            int sum=0;
+            while(num>0)
+            {
+                int rem = num%10;
+                sum = sum*10 + rem;
+                num = num/10;
+            }
+            System.out.println("The reverse of the number : "+sum);
+        }
+    }
+ }