Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
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.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
In Python 3, write a program with classes to keep track of phones. Here are the requirements: Create a new class called Phone. The Phone class should have a class attribute for the owner's name. Since all phones have a manufacturer and a model number, your class should take the manufacturer and model number from the constructor and assign them to instance attributes. Your Phone constructor should be able to take the parameters. Override the print method for Phone to output a human-friendly version of the information. Your code should prompt the user for an owner name and then start prompting for the manufacturers and models for all phones for that user until the user enters a 'q' or 'Q'. After the entry print out a list of all the phones.
Need help with this beginner python question.
By using JAVA
Chapter 5 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
Ch. 5.1 - Consider the program in Listing 5.4 . Suppose you...Ch. 5.1 - Prob. 2STQCh. 5.1 - Prob. 3STQCh. 5.1 - Suppose every species in the world has a peculiar...Ch. 5.1 - Revise the definition of the method writeOutput in...Ch. 5.1 - Revise the definition of the method readInput in...Ch. 5.1 - Revise the definition of the method...Ch. 5.1 - What is the meaning of (int) that appears in the...Ch. 5.1 - Prob. 9STQCh. 5.1 - Define a method called getDensity that could be...
Ch. 5.1 - Define a method called changePopulation that could...Ch. 5.1 - Define a method called changePopulation that could...Ch. 5.2 - In Listing 5.12, we set the data for the object...Ch. 5.2 - Give preconditions and postconditions for the...Ch. 5.2 - What is an accessor method? What is a mutator...Ch. 5.2 - Give the complete definition of a class called...Ch. 5.2 - Prob. 17STQCh. 5.2 - In the definition of the method in Listing 5.15,...Ch. 5.2 - What is a well-encapsulated class definition?Ch. 5.2 - When should an instance variable in a class...Ch. 5.2 - Prob. 21STQCh. 5.2 - In a class definition, is anything private ever...Ch. 5.2 - In a class definition, is the body of any method...Ch. 5.3 - What is a reference type? Are class types...Ch. 5.3 - When comparing two quantities of a class type to...Ch. 5.3 - Prob. 26STQCh. 5.3 - Write a method definition for a method called...Ch. 5.3 - Given the class Species as defined in Listing...Ch. 5.3 - After correcting the program in the previous...Ch. 5.3 - What is the biggest difference between a parameter...Ch. 5.3 - Prob. 31STQCh. 5.3 - Write an equals method for the class Person...Ch. 5.4 - Rewrite the method drawFaceSansMouth in Listing...Ch. 5 - Design a class to represent a credit card. Think...Ch. 5 - Repeat Exercise 1 for a credit card account...Ch. 5 - Repeat Exercise 1 for a coin instead of a credit...Ch. 5 - Repeat Exercise 1 for a collection of coins...Ch. 5 - Consider a Java class that you could use to get an...Ch. 5 - Consider a class that keeps track of the sales of...Ch. 5 - Consider a class MotorBoat that represents...Ch. 5 - Prob. 8ECh. 5 - Prob. 9ECh. 5 - Prob. 10ECh. 5 - Write a program to answer questions like the...Ch. 5 - Define a class called Counter. An object of this...Ch. 5 - Prob. 3PCh. 5 - Define a Trivia class that contains information...Ch. 5 - Define a Beer class that contains the following...Ch. 5 - Write a grading program for an instructor whose...Ch. 5 - Add methods to the Person class from Self-Test...Ch. 5 - Create a class that represents a grade...Ch. 5 - Write a program that uses the Purchase class in...Ch. 5 - Write a program to answer questions like the...Ch. 5 - Consider a class that could be used to play a game...Ch. 5 - Consider a class BasketballGame that represents...Ch. 5 - Consider a class ConcertPromoter that records the...Ch. 5 - Prob. 9PPCh. 5 - Consider a class Movie that contains information...Ch. 5 - Repeat Programming Project 18 from Chapter 4, but...Ch. 5 - Prob. 12PP
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Figure 1-30 shows the Visual Studio IDE. What are the names of the four areas indicated in the figure? Figure 1...
Starting Out With Visual Basic (8th Edition)
Describe the primary differences between the conceptual and logical data models.
Modern Database Management
What are the steps in chemical machining using photosensitive resists?
Degarmo's Materials And Processes In Manufacturing
2-1 List the five types of measurements that form the
basis of traditional ptane surveying-
Elementary Surveying: An Introduction To Geomatics (15th Edition)
ICA 8-31
If a force of 15 newtons [N] is applied to a surface and the pressure is measured as 4,000 pascals [Pa...
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
How does the typing system of PHP and JavaScript differ from that of Java?
Concepts Of Programming Languages
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Make a class Employee with a name and salary. Make a class Manager inherit from Employee. Add an instance variable, named department, of type string. Supply a method tostring that prints the manager's name, department, and salary. Make a class Executive inherit from Manager. Supply appropriate tostring methods for all classes. Supply a test program that tests these classes and methods.arrow_forwardCreate a class with a method. The method has to decide whether a given year is a leap year or not. Note- A year is a leap year if: • It has an extra day i.e. 366 instead of 365. It occurs in every 4 year e.g. 2008, 2012 are leap years. For every 100 years a special rule applies-1900 is not a leap year but 2000 is a leap year. In those cases, we need to check whether it is divisible by 400 or not. > > ClassAssignmentEx2 ©LeapYearDecider javaclassnotes.assignments javaclassnotes.assignments ClassAssignmentEx2() LeapYearDecider() main(String):void A isLeapYear(int):booleanarrow_forward4. Write a program that computes the area of a circular region (the shaded area in the diagram) given the radii of the inner and the outer circles, rị and r, respectively. We compute the area of the circular region by subtracting the area of the inner circle from the area of the outer circle. Define a Circle class that has methods to compute the area and circumference. You set the circle's radius with the setRadius method or via a constructor.arrow_forward
- Design a class called Stopwatch. The job of this class is to simulate a stopwatch. It should provide two methods: Start and Stop. We call the start method first, and the stop method next. Then we ask the stopwatch about the duration between start and stop. Duration should be a value in TimeSpan. Display the duration on the console. We should also be able to use a stopwatch multiple times. So we may start and stop it and then start and stop it again. Make sure the duration value each time is calculated properly. We should not be able to start a stopwatch twice in a row (because that may overwrite the initial start time). So the class should throw an InvalidOperationException if its started twice. 1arrow_forwardImplement a class RoachPopulation that simulates the growth of a roach population. The constructor takes the size of the initial roach population. The breed method simulates a period in which the roaches breed, which doubles their population. The spray(double percent) method simulates spraying with insecticide, which reduces the population by the given percentage. The getRoaches method returns the current number of roaches. A program called RoachSimulation simulates a population that starts out with 10 roaches. Breed, spray to reduce the population by 10 percent, and print the roach count. Repeat three more times.arrow_forwardUse Java.arrow_forward
- Give Solutionarrow_forwardwrite a program to print the names of the student by creating a student class .if no name is passed while creating an object of the student class,then the name should be "unknown" ,otherwise the name should be equal to the string valaue passed while creating the object of the student class.arrow_forwardCreate a Right Triangle class that has two sides. Name your class rightTraingle. Code getter and setters for the base and the height. (Remember class variables are private.) The class should include a two-argument constructor that allows the program to set the base and height. The constructor should verify that all the dimensions are greater than 0. before assigning the values to the private data members. If a side is not greater than zero, set the value to -1. The class also should include two value-returning methods. One value-returning method should calculate the area of a triangle, and the other should calculate the perimeter of a triangle. If either side is -1, these functions return a -1. The formula for calculating the area of a triangle is 1/2 * b*h, where b is the base and h is the height. The formula for calculating the perimeter of a triangle is b+h+sqrt (b*b+h*h). Be sure to include a default constructor that initializes the variables of the base, height to -1. To test…arrow_forward
- In python how do you: Complete the FoodItem class by adding a constructor to initialize a food item. The constructor should initialize the name to "None" and all other instance attributes to 0.0 by default. If the constructor is called with a food name, grams of fat, grams of carbohydrates, and grams of protein, the constructor should assign each instance attribute with the appropriate parameter value. The given program accepts as input a food item name, fat, carbs, and protein and the number of servings. The program creates a food item using the constructor parameters' default values and a food item using the input values. The program outputs the nutritional information and calories per serving for both food items. Ex: If the input is: M&M's 10.0 34.0 2.0 1.0 where M&M's is the food name, 10.0 is the grams of fat, 34.0 is the grams of carbohydrates, 2.0 is the grams of protein, and 1.0 is the number of servings, the output is: Nutritional information per serving of None:…arrow_forwardCreate a base class called Insect. All insects belong to an Order [i.e. “Hemiptera” (ants), “Siphonaptera” (fleas), “Termitoidae” (termites), “Gryllidae” (crickets), etc.] and have a size that is measured in millimeters (use a double data type). Provide a default constructor that initializes the size to zero and outputs the message “Invoking the default Insect constructor” and another constructor that allows the Order and size to be set by the client. This other constructor should also output the message “Invoking the 2-argument Insect constructor.” Also create a destructor for this class that outputs the message “Invoking the default Insect destructor.” Your Insect class should have a function called Eat that cannot be implemented. That is, it should be declared as a purely virtual function. Your class should also have Get and Set methods to allow the order and size to be accessed.arrow_forwardWrite and fully test a class that represents rational numbers. A rational number can be represented as the ratio of two integer values, a and b, where b is not zero. The class has attributes for the numerator and denominator of this ratio. The ratio should always be stored in its simplest form. That is, any common factor of a and b should be removed. For example, the rational number 40/12 should be stored as 10/3. Solution to Project 9 The class has the following constructors and methods: A default constructor that sets the rational number to 0/1. A constructor that has parameters for the numerator and denominator and converts the resulting ratio to simplified form. simplify—a private method that converts the rational number to simplified form. getGCD(x, y)—a private static method that returns the largest common factor of the two positive integers x and y, that is, their greatest common divisor. For example, the greatest common divisor of 40 and 12 is 4.getValue—returns the rational…arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
6 Stages of UI Design; Author: DesignerUp;https://www.youtube.com/watch?v=_6Tl2_eM0DE;License: Standard Youtube License