4th Edition

ISBN: 9780134757179

Author: GADDIS

Publisher: PEARSON CO

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In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic program…

Constructor

The easiest way to think of a constructor in object-oriented programming (OOP) languages is:

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Textbook Question

Chapter 10, Problem 8PC

PreferredCustomer Class

A retail store has a preferred customer plan where customers can earn discounts on all their purchases. The amount of a customer’s discount is determined by the amount of the customer’s cumulative purchases in the store as follows:

When a preferred customer spends $500, he or she gets a 5 percent discount on all future purchases.
When a preferred customer spends $1,000, he or she gets a 6 percent discount on all future purchases.
When a preferred customer spends $1,500, he or she gets a 7 percent discount on all future purchases.
When a preferred customer spends $2,000 or more, he or she gets a 10 percent discount on all future purchases.

Design a class named PreferredCustomer, which extends the Customer class you created in Programming Challenge 7. The PreferredCustomer class should have fields for the amount of the customer’s purchases and the customer’s discount level. Write one or more constructors and the appropriate mutator and accessor methods for the class’s fields. Demonstrate the class in a simple program.

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Chapter 10, Problem 7PC

Chapter 10, Problem 9PC

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Q.1. Architecture performance [10 marks] Answer A certain microprocessor requires either 2, 4, or 6 machine cycles to perform various operations. ⚫ (40+g+f)% require 2 machine cycles, ⚫ (30-g) % require 4 machine cycles, and ⚫ (30-f)% require 6 machine cycles. (a) What is the average number of machine cycles per instruction for this microprocessor? Answer (b) What is the clock rate (machine cycles per second) required for this microprocessor to be a "1000 MIPS" processor? Answer (c) Suppose that 35% of the instructions require retrieving an operand from memory which needs an extra 8 machine cycles. What is the average number of machine cycles per instruction, including the instructions that fetch operands from memory?

Q.2. Architecture performance [25 marks] Consider two different implementations, M1 and M2, of the same instruction set. M1 has a clock rate of 2 GHz and M2 has a clock rate of 3.3 GHz. There are two classes of instructions with the following CPIs: Class A CPI for M1 CPI for M2 2.f 1.g B 5 3 C 6 4 Note that the dots in 2 fand 1.g indicate decimal points and not multiplication. a) What are the peak MIPS performances for both machines? b) Which implementation is faster, if half the instructions executed in a certain program are from class A, while the rest are divided equally among classes B and C. c) What speedup factor for the execution of class-A instructions would lead to 20% overall speedup? d) What is the maximum possible speedup that can be achieved by only improving the execution of class-A instructions? Explain why. e) What is the clock rate required for microprocessor M1 to be a "1000 MIPS" (not peak MIPS) processor?

Chapter 10 Solutions

EBK STARTING OUT W/JAVA:...DATA...

Ch. 10.1 - Here is the first line of a class declaration....Ch. 10.1 - Look at the following class declarations and...Ch. 10.1 - Class B extends class A. (Class A is the...Ch. 10.2 - Prob. 10.4CP Ch. 10.2 - Look at the following classes: public class Ground...Ch. 10.3 - Under what circumstances would a subclass need to...Ch. 10.3 - How can a subclass method call an overridden...Ch. 10.3 - If a method in a subclass has the same signature...Ch. 10.3 - If a method in a subclass has the same name as a...Ch. 10.3 - Prob. 10.10CP

Ch. 10.4 - When a class member is declared as protected, what...Ch. 10.4 - What is the difference between private members and...Ch. 10.4 - Why should you avoid making class members...Ch. 10.4 - Prob. 10.14CP Ch. 10.4 - Why is it easy to give package access to a class...Ch. 10.6 - Look at the following class definition: public...Ch. 10.6 - When you create a class, it automatically has a...Ch. 10.7 - Recall the Rectangle and Cube classes discussed...Ch. 10.8 - Prob. 10.19CP Ch. 10.8 - If a subclass extends a superclass with an...Ch. 10.8 - What is the purpose of an abstract class?Ch. 10.8 - If a class is defined as abstract, what can you...Ch. 10.9 - Prob. 10.23CP Ch. 10.9 - Prob. 10.24CP Ch. 10.9 - Prob. 10.25CP Ch. 10.9 - Prob. 10.26CP Ch. 10.9 - Prob. 10.27CP Ch. 10.9 - Prob. 10.28CP Ch. 10 - In an inheritance relationship, this is the...Ch. 10 - In an inheritance relationship, this is the...Ch. 10 - This key word indicates that a class inherits from...Ch. 10 - A subclass does not have access to these...Ch. 10 - This key word refers to an objects superclass. a....Ch. 10 - In a subclass constructor, a call to the...Ch. 10 - The following is an explicit call to the...Ch. 10 - A method in a subclass that has the same signature...Ch. 10 - A method in a subclass having the same name as a...Ch. 10 - These superclass members are accessible to...Ch. 10 - Prob. 11MC Ch. 10 - With this type of binding, the Java Virtual...Ch. 10 - This operator can be used to determine whether a...Ch. 10 - When a class implements an interface, it must...Ch. 10 - Prob. 15MC Ch. 10 - Prob. 16MC Ch. 10 - Abstract classes cannot ___________. a. be used as...Ch. 10 - You use the __________ operator to define an...Ch. 10 - Prob. 19MC Ch. 10 - Prob. 20MC Ch. 10 - You can use a lambda expression to instantiate an...Ch. 10 - True or False: Constructors are not inherited.Ch. 10 - True or False: in a subclass, a call to the...Ch. 10 - True or False: If a subclass constructor does not...Ch. 10 - True or False: An object of a superclass can...Ch. 10 - True or False: The superclass constructor always...Ch. 10 - True or False: When a method is declared with the...Ch. 10 - True or False: A superclass has a member with...Ch. 10 - True or False: A superclass reference variable can...Ch. 10 - True or False: A subclass reference variable can...Ch. 10 - True or False: When a class contains an abstract...Ch. 10 - True or False: A class may only implement one...Ch. 10 - True or False: By default all members of an...Ch. 10 - // Superclass public class Vehicle { (Member...Ch. 10 - // Superclass public class Vehicle { private...Ch. 10 - // Superclass public class Vehicle { private...Ch. 10 - // Superclass public class Vehicle { public...Ch. 10 - Write the first line of the definition for a...Ch. 10 - Look at the following code, which is the first...Ch. 10 - Write the declaration for class B. The classs...Ch. 10 - Write the statement that calls a superclass...Ch. 10 - A superclass has the following method: public void...Ch. 10 - A superclass has the following abstract method:...Ch. 10 - Prob. 7AW Ch. 10 - Prob. 8AW Ch. 10 - Look at the following interface: public interface...Ch. 10 - Prob. 1SA Ch. 10 - A program uses two classes: Animal and Dog. Which...Ch. 10 - What is the superclass and what is the subclass in...Ch. 10 - What is the difference between a protected class...Ch. 10 - Can a subclass ever directly access the private...Ch. 10 - Which constructor is called first, that of the...Ch. 10 - What is the difference between overriding a...Ch. 10 - Prob. 8SA Ch. 10 - Prob. 9SA Ch. 10 - Prob. 10SA Ch. 10 - What is an. abstract class?Ch. 10 - Prob. 12SA Ch. 10 - When you instantiate an anonymous inner class, the...Ch. 10 - Prob. 14SA Ch. 10 - Prob. 15SA Ch. 10 - Employee and ProductionWorker Classes Design a...Ch. 10 - ShiftSupervisor Class In a particular factory, a...Ch. 10 - TeamLeader Class In a particular factory, a team...Ch. 10 - Essay Class Design an Essay class that extends the...Ch. 10 - Course Grades In a course, a teacher gives the...Ch. 10 - Analyzable Interface Modify the CourseGrades class...Ch. 10 - Person and Customer Classes Design a class named...Ch. 10 - PreferredCustomer Class A retail store has a...Ch. 10 - BankAccount and SavingsAccount Classes Design an...Ch. 10 - Ship, CruiseShip, and CargoShip Classes Design a...

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