1. Create a class Iterating. In it, create a (static) function printAll that takes any object that implements the Collection interface on Strings. So, its definition should look like this:

   public static void printAll(Collection<String> strings) { ... }

   The function should print out each string from the collection, one per line:

   First string
   Second string
   last String

   To do this, you will probably need to use the for-each loop from Java 5.0 to iterate through the collection.

2. In the Iterating class, add a (static) function useAL that creates an ArrayList of strings and calls printAll to output them.

   Create another function useHS that creates a HashSet of strings and calls printAll to output them.

3. Create a class NiceInput that asks the user to enter a number, and stores it in an int. The program should not crash if the user types something other than a number:

   Enter a number: 34
   34 is a nice number.

   Enter a number: two
   That wasn't a number, but it was nice.

   You will have to catch an exception to do this. You should only catch the exception caused by incorrect input, not any other types.

4. Create a text file named time.txt. In it, indicate how long it took you to complete this lab exercise.

When you're done, create a ZIP file containing all of the files you created for this lab and submit it with the submission server.