1. Ask the user to enter a number.
2. Read this number from the standard input, appending characters to a StringBuffer object, until the user presses Enter.
3. Invoke the StringBuffer's toString() method to get a String object from the StringBuffer object.
4. Convert this character string into a number using a wrapper data type. For example, you can convert a String object to an int by writing:
   

   int i = new Integer(s).intValue()
   

5. Test to see if this number is a prime. A prime numbers is not evenly divisible by any numbers between 2 and itself minus 1. You can use the % operator to calculate the remainder of a division.
6. Write a message indicating whether the number is a prime.

Handling exceptions is optional, but it's always a good idea to do so.
Once you have this working, copy and paste your answer into the text area below.