Java Format: Unbound (saleable)
8th Edition
ISBN: 9780134448398
Author: SAVITCH, Walter
Publisher: Prentice Hall
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Textbook Question
Chapter 5, Problem 6PP
Consider a class that could be used to play a game of hangman. The class has the following attributes:
Developing a solution to Project 6
- 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, b, and e 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:
- makesGuess (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.
- a. Write a method heading for each method.
- b. Write preconditions and postconditions for each method.
- c. Write some Java statements that test the class.
- d. Implement the class.
- e. 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.
- f. Write a program that implements the game of hangman using the class you wrote for Part d.
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IN C++
Implement a class Car with the following properties.
A car has a certain fuel efficiency (measured in miles/gallon or liters/km—pick one) and a certain amount of fuel in the gas tank.
The efficiency is specified in the constructor, and the initial fuel level is 0.
Provide another parameterized constructor which takes both efficiency and fuel as parameters.
Also supply methods
getGasInTank, returning the current amount of gasoline in the fuel tank.
getEfficiency() return the efficiency of car.
setGasInTank(double fuel), to add gasoline to the fuel tank.
setEfficiency(double efficiency)
Supply a method Drive () that simulates driving the car for a certain distance, reducing the amount of gasoline in the fuel tank according to its efficiency.
Sample usage:
Car myHybrid (50); // 50 miles per gallon
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Chapter 5 Solutions
Java Format: Unbound (saleable)
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