Consider a class that could be used to play a game of hangman. The class has the following attributes:

• The secret word
• The disguised word, in which each unknown letter in the secret word is replaced with a question mark (?). For example, if the secret word is abracadabra, and the letters a , and b have been guessed, the disguised word would be ab?a?a?ab?a
• The number of guesses made
• The number of incorrect guesses

It will have the following methods:

• MakeGuess(c) guesses that character c is in the word
• getDisguisedWord returns a string containing correctly guessed letters in their correct positions and unknown letters replaced with ?
• getSecretWord returns the secret word
• getGuessCount returns the number of guesses made
• isFound returns true if the hidden word has been discovered.

Perform the following actions:

• Write a method heading for each method.
• Write preconditions and postconditions for each method.
• Write some Java statements that test the class.
• Implement the class.
• List any additional methods and attributes needed in the implementation that were not listed in the original design. List any other changes made to the original design.
• Write a program that implements the game of handgman, using the class you wrote for part d.