Java: An Introduction to Problem Solving and Programming (7th Edition)
7th Edition
ISBN: 9780133766264
Author: Walter Savitch
Publisher: PEARSON
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Chapter 6, Problem 7P
We can improve the Beer class from the previous Practice
Address this problem by adding or modifying the mutator method, setAlcohol. If the variable that is being set is over 1 then set the alcohol variable to the incoming value divided by 100. Otherwise set the alcohol variable to the incoming value. You should also do this check for the percentage set by the constructor Test your program by sett1ng the percent alcohol to 5 0 and to 0 05 The results should be unchanged.
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This may make more sense if I show you a sample run of a program that implements the wizard shown above:
Do you want to buy a snowboard?
no
Do you want to buy downhill skis?
yes
Have you gone skiing before?
yes
Are you an expert?
no
Buy the ZR200 model.
Notice how a series of questions is asked by the wizard and answered by the shopper. When there are no more questions to be asked, the conclusion is printed by the wizard and the program exits. The series of questions asked by the wizard closely follows the rules in the flow chart.
A Decision object represents a triangle in the flow cart. The Decision object asks a question and then returns either the next decision in the flow chart, or a message that should be printed before the program terminates. This is an example of the Composite design pattern because a Decision object contains other Decision objects. Here is a description of the methods in the IDecision interface:
public void setYes(IDecision yes): Specifies the IDecision that…
For your first program, you are to write a simple Dodgeball simulation. In this simulation, we will have nplayers, and one ball. One player, the "thrower," will have the ball. The thrower will throw the ball at anotherplayer, the "target." The target could catch the ball, could be hit by the ball, or the ball could completely missthe target. If the target catches the ball, then the thrower is out of the game (and the target becomes the nextthrower.) If the ball hits the target, then the target is out of the game. If the ball misses the target, neitherplayer is out. In the latter two cases, any one can pick up the ball and become the next thrower. The game isover when only one player is left.In this simple version, the players (initially n players) will stand in a circle. The thrower will always countthe players to his/her right, and then throw the ball at the dth player, who becomes the target. The target willalways catch the ball, so that the thrower will be out of the game (and will…
Read the following scenario:
To implement an exam, an instructor first notifies the students of the exam date and the topics to be covered. The instructor will prepare the exam paper, gets it copied to produce
enough copies for the class, and hands it out to students at the designated time and location. The students attempt their answers to exam questions and hand in their answer
papers to the instructor. The instructor then gives the answer papers to the tutor, along with sample solutions to each question, and gets them to mark it. The tutor will then
records all the marks and return the answer papers to the students. After the answer papers have been returned to the students, they can raise any issues or queries about the
marks they received. The instructor then reviews these queries/issues and decides whether marks adjustments are needed. If there are marks adjustments, the instructor will
request the tutor to make the necessary changes in the marks record.
Draw a sequence diagram…
Chapter 6 Solutions
Java: An Introduction to Problem Solving and Programming (7th Edition)
Ch. 6.1 - If a class is named Student, what name can you use...Ch. 6.1 - When defining a constructor, what do you specify...Ch. 6.1 - What is a default constructor?Ch. 6.1 - Does every class in Java automatically have a...Ch. 6.1 - In the program PetDemo shown in Listing 6 2, you...Ch. 6.2 - Prob. 6STQCh. 6.2 - Can a class contain both instance variables and...Ch. 6.2 - Can you reference a static variable by name within...Ch. 6.2 - Can you reference an instance variable by name...Ch. 6.2 - Can you reference a static variable by name within...
Ch. 6.2 - Can you reference an instance variable by name...Ch. 6.2 - Is the following valid, given the class...Ch. 6.2 - Prob. 13STQCh. 6.2 - Prob. 14STQCh. 6.2 - Prob. 15STQCh. 6.2 - Is the following valid, given the class...Ch. 6.2 - What values are returned by each of the following?...Ch. 6.2 - Suppose that speed is a variable of type double...Ch. 6.2 - Repeat the previous question, but instead assign...Ch. 6.2 - Suppose that nl is of type int and n2 is of type...Ch. 6.2 - Define a class CircleCalculator that hat only two...Ch. 6.2 - Which of the following statements are legal?...Ch. 6.2 - Write a Java expression to convert the number in...Ch. 6.2 - Consider the variable 5 of type String that...Ch. 6.2 - Repeat the previous question, but accommodate a...Ch. 6.2 - Write Java code to display the largest and...Ch. 6.3 - Prob. 27STQCh. 6.3 - Consider the variable allCents in the method...Ch. 6.3 - What is wrong with a program that starts as...Ch. 6.3 - Prob. 30STQCh. 6.3 - In your definition of the class OutputFormat. In...Ch. 6.4 - Prob. 32STQCh. 6.4 - Prob. 33STQCh. 6.4 - Prob. 34STQCh. 6.4 - Consider the class Species in Listing 5.19 of...Ch. 6.4 - Repeat the previous question for a method...Ch. 6.4 - Still considering the class Species in Listing...Ch. 6.4 - Rewrite the method add in Listing 6.16 so that it...Ch. 6.4 - In Listing 6.16, the set method that has a String...Ch. 6.5 - Give the definitions of three accessor methods...Ch. 6.6 - If cardSuit is an instance of Suit and is assigned...Ch. 6.7 - Suppose you want to use classes in the package...Ch. 6.7 - Prob. 43STQCh. 6.7 - Can a package have any name you might want, or are...Ch. 6.7 - On your system, place the class Pet (Listing 6.1)...Ch. 6.8 - Prob. 46STQCh. 6.8 - Prob. 47STQCh. 6.8 - Prob. 48STQCh. 6.8 - Prob. 49STQCh. 6.8 - Prob. 50STQCh. 6.8 - Prob. 51STQCh. 6.8 - Revise the applet in Listing 6.24 so that the...Ch. 6 - Prob. 1ECh. 6 - Prob. 2ECh. 6 - Write a default constructor and a second...Ch. 6 - Write a constructor for the class...Ch. 6 - Consider a class characteristic that will be used...Ch. 6 - Create a class RoomOccupancy that can be used to...Ch. 6 - Write a program that tests the class RoomOccupancy...Ch. 6 - Sometimes we would like a class that has just a...Ch. 6 - Create a program that tests the class Merlin...Ch. 6 - In the previous chapter, Self-Test Question 16...Ch. 6 - Create a class Android whose objects have unique...Ch. 6 - Prob. 12ECh. 6 - Modify the definition of the class Species in...Ch. 6 - Prob. 2PCh. 6 - Using the class Pet from Listing 6.1, write a...Ch. 6 - Do Practice Program 4 from Chapter 5 except define...Ch. 6 - The following class displays a disclaimer every...Ch. 6 - Do Practice Program 5 from Chapter 5 but add a...Ch. 6 - We can improve the Beer class from the previous...Ch. 6 - Define a utility class for displaying values of...Ch. 6 - Write a new class TruncatedDollarFormat that is...Ch. 6 - Complete and fully test the class Time that...Ch. 6 - Complete and fully test the class Characteristic...Ch. 6 - Write a Java enumeration LetterGrade that...Ch. 6 - Complete and fully test the class Per n that...Ch. 6 - Write a Temperature class that represents...Ch. 6 - Repeat Programming Project 8 of the previous...Ch. 6 - Write and fully test a class that represents...Ch. 6 - Write a program that will record the votes for one...Ch. 6 - Repeat Programming Project 10 from Chapter 5, but...Ch. 6 - Prob. 12PPCh. 6 - Prob. 13PPCh. 6 - Prob. 14PPCh. 6 - Prob. 15PP
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Java random numbers; Author: Bro code;https://www.youtube.com/watch?v=VMZLPl16P5c;License: Standard YouTube License, CC-BY