The SetTest Application

Overview

In this challenge, we revisit the concept of hashing with the Java HashSet. You will create a SetTest application that demonstrates creating and processing a generic Set limited to String objects, with the Set implemented as a HashSet. The application will include an inputSetNames method, a displaySetNames method, and a searchSetNames method.

Specifications

Create the skeleton for a program called SetTest.

Declare a private static Scanner object.

In method main, declare a generic Set called names that only accepts String objects. Use the Set implementation java.util.HashSet.

In method main, display a message explaining that a Set of names will be entered, displayed, and searched.

Call the method to input the names.

o Prompt and read the first name.

o Add the name to the names Set.

o Continue prompting and reading names until the user types end.

o Add each name to the names Set after user entry.

Call the method to display the names Set .

Call the method to search for a name in the names Set.

o Prompt and read a search name.

o Display the proper message indicating whether the search name was found. Hint: use the Set contains method.

o The user can continue to search for another name or enter end when finished searching.

Additional Requirements

Perform a short Internet search on HashSets and HashMaps and add a comment at the end of your program with a response to this question:

o What are the differences in the way HashSet and HashMap are internally implemented in Java? Do you think HashSet is preferred to HashMap for storing a collection of names? Why or why not? Cite your sources.

Sample Output

This program will prompt you to enter names into a Set. The names in the Set will be displayed. Finally, you will have an opportunity to search a name in the Set.

Add a name to the set; enter "end" to terminate input: Noah

Add a name to set; enter "end" to terminate input: Oliver

Add a name to set; enter "end" to terminate input: Sophia

Add a name to set; enter "end" to terminate input: Zoe

Add a name to set; enter "end" to terminate input: Liam

Add a name to set; enter "end" to terminate input: Oliver

Add a name to set; enter "end" to terminate input: end

Set: [Zoe, Oliver, Noah, Liam, Sophia]

Enter a search a name; enter "end" to terminate searching: Joe

Joe was not found in the set.

Enter a search name; enter "end" to terminate searching: sophia

sophia was not found in the set.

Enter a search name; enter "end" to terminate searching: Sophia

Sophia was found in the set.

Enter a search name; enter "end" to terminate searching: end