Java: An Introduction to Problem Solving and Programming (7th Edition)

7th Edition

ISBN: 9780133766264

Author: Walter Savitch

Publisher: PEARSON

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Textbook Question

Chapter 5, Problem 5P

Define a Beer class that contains the following instance variables with accessors/mutators:

String name; // The name of the beer

doub alcohol; // The percent alcohol of the beer, e.g. // 0.05 for 5%

Add the following method:

// This method returns the number of drinks that a person

// of (weight) pound s can drink using the alcohol percentage

// in the beer, assuming a drink of 12 ounces. This is an

// estimate. The method assumed that the legal limit is 0.08 blood

// alcohol

public double intoxicated (double weight)

{

double numDrinks;

// This is a simplification of the Widmark formula

numDrinks = (0. 08 + 0. 015) *weight / (12 * 7.5 * alcohol);

return numDrinks;

}

Write code in a main method that creates two Beer objects with different alcohol percentages. Invoke the intoxicated method for a light individual and a heavy individual and output the estimated number of drinks to become legally intoxicated.

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Chapter 5, Problem 4P

Chapter 5, Problem 1PP

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Chapter 5 Solutions

Java: An Introduction to Problem Solving and Programming (7th Edition)

Ch. 5.1 - Consider the program in Listing 5.4 . Suppose you...Ch. 5.1 - Prob. 2STQ Ch. 5.1 - Prob. 3STQ Ch. 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. 9STQ Ch. 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. 17STQ Ch. 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. 21STQ Ch. 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. 26STQ Ch. 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. 31STQ Ch. 5.3 - Write an equals method for the class Person...Ch. 5.4 - Prob. 33STQ Ch. 5.4 - Prob. 34STQ Ch. 5.4 - Prob. 35STQ Ch. 5.4 - Prob. 36STQ Ch. 5.4 - Prob. 37STQ 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. 8E Ch. 5 - Prob. 9E Ch. 5 - Prob. 10E Ch. 5 - Write a program to answer questions like the...Ch. 5 - Define a class called Counter. An object of this...Ch. 5 - Prob. 3P Ch. 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. 9PP Ch. 5 - Consider a class Movie that contains information...Ch. 5 - Repeat Programming Project 18 from Chapter 4, but...Ch. 5 - Prob. 12PP

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