Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
7th Edition
ISBN: 9780134802213
Author: Tony Gaddis
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 11PC
Freezing and Boiling Points
The following table lists the freezing and boiling points of several substances.
| Substance | Freezing Point | Boiling Point |
| Ethyl Alcohol | −173 | 172 |
| Oxygen | −362 | −306 |
| Water | 32 | 212 |
Design a class that stores a temperature in a temperature field and has the appropriate accessor and mutator methods for the field. In addition to appropriate constructors, the class should have the following methods:
- isEthylFreezing. This method should return the boolean value true if the temperature stored in the temperature field is at or below the freezing point of ethyl alcohol. Otherwise, the method should return false.
- isEthylBoiling. This method should return the boolean value t rue if the temperature stored in the temperature field is at or above the boiling point of ethyl alcohol. Otherwise, the method should return false.
- isOxygenFreezing. This method should return the boolean value true if the temperature stored in the temperature field is at or below the freezing point of oxygen. Otherwise, the method should return false.
- isOxygenBoiling. This method should return the boolean value true if the temperature stored in the temperature field is at or above the boiling point of oxygen. Otherwise, the method should return false.
- isWaterFreezing. This method should return the boolean value true if the temperature stored in the temperature field is at or below the freezing point of water. Otherwise, the method should return false.
- isWaterBoiling. This method should return the boolean value true if the temperature stored in the temperature field is at or above the boiling point of water. Otherwise, the method should return false.
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Freezing and Boiling PointsThe following table lists the freezing and boiling points of several substances.Substance Freezing Point || Boiling PointEthyl Alcohol -173 || 172Oxygen -362 || -306Water 32 || 212Design a class that stores a temperature in a temperature field and has the appropriate accessor and mutator method for the field. In addition to appropriate constructors, the class should have the following methods:• isEthylFreezing. This method should return the boolean value true if the tempera-ture stored in the temperature field is at or below the freezing point of ethyl alcohol. Otherwise, the method should return false.• isEthylBoiling. This method should return the boolean value true if the tempera-ture stored in the temperature field is at or above the boiling point of ethyl alcohol. Otherwise, the method should return false.• isOxygenFreezing. This method should return the boolean value true if the tem-perature stored in the temperature field is at or below the freezing…
Circle ClassWrite a Circle class that has the following fields:• radius: a double• PI: a final double initialized with the value 3.14159The class should have the following methods:• Constructor. Accepts the radius of the circle as an argument.• Constructor. A no-arg constructor that sets the radius field to 0.0.• setRadius. A mutator method for the radius field.• getRadius. An accessor method for the radius field.• area. Returns the area of the circle, which is calculated asarea = PI * radius * radius• diameter. Returns the diameter of the circle, which is calculated asdiameter = radius * 2• circumference. Returns the circumference of the circle, which is calculated ascircumference = 2 * PI * radiusWrite a program that demonstrates the Circle class by asking the user for the circle’s radius, creating a Circle object, and then reporting the circle’s area, diameter, and circumference.
JAVA - USING CONSTRUCTORS
Create a class named House that includes data fields for the number of occupants and the annual income as well as methods named setOccupants(), setIncome(), getOccupants() and getIncome() that set and return those values respectively. Additionally, create a constructor that requires no arguments and automatically sets the occupants field to 1 and income field to 0. Create an additional overloaded constructor . This constructor receives an integer argument and assigns the value to the occupants field. Create a third overloaded constructor this time, the constructor receives 2 arguments, the values of which are assigned to the occupants and income fields respectively. Create another class named I_house that instantiates the House class and see if the constructors work correctly.
Chapter 6 Solutions
Starting Out with Java: From Control Structures through Objects (7th Edition) (What's New in Computer Science)
Ch. 6.1 - What does an object use its fields for?Ch. 6.1 - Prob. 6.2CPCh. 6.1 - How is a class like a blueprint?Ch. 6.1 - You have programs that create Scanner, Random, and...Ch. 6.1 - Prob. 6.5CPCh. 6.1 - What values do reference variables hold?Ch. 6.1 - Prob. 6.7CPCh. 6.2 - You hear someone make the following comment: A...Ch. 6.2 - Prob. 6.9CPCh. 6.2 - When a variable is said to reference an object,...
Ch. 6.2 - Prob. 6.11CPCh. 6.2 - Prob. 6.12CPCh. 6.2 - Prob. 6.13CPCh. 6.2 - Prob. 6.14CPCh. 6.2 - Prob. 6.15CPCh. 6.2 - What is a stale data item?Ch. 6.3 - Assume that r1 and r2 are variables that reference...Ch. 6.4 - How is a constructor named?Ch. 6.4 - What is a constructors return type?Ch. 6.4 - Prob. 6.20CPCh. 6.7 - Prob. 6.21CPCh. 6.7 - What is a methods signature?Ch. 6.7 - Look at the following class: public class...Ch. 6.7 - How many default constructors may a class have?Ch. 6.9 - Prob. 6.25CPCh. 6.9 - When designing an object-oriented application, who...Ch. 6.9 - How do you identify the potential classes in a...Ch. 6.9 - What are a classs responsibilities?Ch. 6.9 - What two questions should you ask to determine a...Ch. 6.9 - Will all of a classs actions always be directly...Ch. 6 - This is a collection of programming statements...Ch. 6 - A class is analogous to a(n) _______. a. house b....Ch. 6 - An object is a(n) ________. a. blueprint b....Ch. 6 - This is a class member that holds data. a. method...Ch. 6 - This key word causes an object to be created in...Ch. 6 - This is a method that gets a value from a classs...Ch. 6 - This is a method that stores a value in a field or...Ch. 6 - When the value of an item is dependent on other...Ch. 6 - This is a method that is automatically called when...Ch. 6 - When a local variable has the same name as a...Ch. 6 - This is automatically provided for a class if you...Ch. 6 - Prob. 12MCCh. 6 - Prob. 13MCCh. 6 - A classs responsibilities are __________. a. the...Ch. 6 - True or False: The new operator creates an...Ch. 6 - True or False: Each instance of a class has its...Ch. 6 - True or False: When you write a constructor for a...Ch. 6 - True or False: A class may not have more than one...Ch. 6 - True or False: To find the classes needed for an...Ch. 6 - Find the error in the following class: public...Ch. 6 - Prob. 2FTECh. 6 - The following statement attempts to create a...Ch. 6 - Find the error in the following class: public...Ch. 6 - Find the error in the following class: public...Ch. 6 - Design a class named Pet, which should have the...Ch. 6 - Look at the following partial class definition,...Ch. 6 - Consider the following class declaration: public...Ch. 6 - Look at the following description of a problem...Ch. 6 - The bank offers the following types of accounts to...Ch. 6 - Assume that you are writing an application that...Ch. 6 - What is the difference between a class and an...Ch. 6 - A contractor uses a blueprint to build a set of...Ch. 6 - What is an accessor method? What is a mutator...Ch. 6 - is it a good idea to make fields private? Why or...Ch. 6 - If a class has a private field, what has access to...Ch. 6 - Prob. 6SACh. 6 - Assume a program named MailList.java is stored in...Ch. 6 - Why are constructors useful for performing...Ch. 6 - Under what circumstances does Java automatically...Ch. 6 - What do you call a constructor that accepts no...Ch. 6 - Prob. 11SACh. 6 - How does method overloading improve the usefulness...Ch. 6 - Employee Class Write a class named Employee that...Ch. 6 - Car Class Write a class named Car that has the...Ch. 6 - Personal Information Class Design a class that...Ch. 6 - Retail Item Class Write a class named RetailItem...Ch. 6 - Payroll Class Design a Payroll class that has...Ch. 6 - TestScores Class Design a TestScores class that...Ch. 6 - Circle Class Write a Circle class that has the...Ch. 6 - Temperature Class Write a Temperature class that...Ch. 6 - Days in a Month Write a class named MonthDays, The...Ch. 6 - A Game of Twenty-One For this assignment, you will...Ch. 6 - Freezing and Boiling Points The following table...Ch. 6 - SavingsAccount Class Design a SavingsAccount class...Ch. 6 - Deposit and Withdrawal Files Use Notepad or...Ch. 6 - Patient Charges Write a class named Patient that...Ch. 6 - Dice Game Write a program that uses the Die class...Ch. 6 - Roulette Wheel Colors On a roulette wheel, the...Ch. 6 - Coin Toss Simulator Write a class named Coin. The...Ch. 6 - Tossing Coins for a Dollar For this assignment you...Ch. 6 - Fishing Game Simulation For this assignment, you...
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