EBK STARTING OUT W/JAVA:...DATA...
4th Edition
ISBN: 9780134757179
Author: GADDIS
Publisher: PEARSON CO
expand_more
expand_more
format_list_bulleted
Expert Solution & Answer
Chapter 17.2, Problem 17.6CP
Explanation of Solution
Passing reference type to type parameter of a class:
“Yes”, only reference type can be passed to the type parameter of a class.
Explanation:
- Reference type can be passed to the type parameter when creating the instances of a class.
- By default, Java provides Object as type argument on creating the instance of a generic class.
Example:
// Create generic class exam with type parameter T
public class exam<T>
{
//Declare the variable with type parameter T
private T to;
private T ra;
//Define the generic class constructor
public exam(T tot, T rank)
{
//Assigning values for variable
to= tot;
ra=rank;
}
//Define the main method
public static void main (String[] args)
{
//Create the Integer object
Integer rank= new Integer(2);
//Create Double object
Double tot= new Double(466...
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
C++
You may work on a single class.
The parameter and return type s of each function and class member function should be decided in advance.
The program will be best implemented as a multi-file program, (header file, the main program,..)
Design a generic class to hold the following information about a bank account:
Balance
Number of deposits this month
Number of withdrawals
Annual Interest Rate
Monthly service charges
The class should have the following member function:
Constructors
Accepts arguments for the balance and annual interest rate.
deposit
a virtual function that accepts an argument for the amount of the deposit. The function should add the argument to the account balance.
It should also increment the variable holding the number of deposits.
withdraw
a virtual function that accepts an argument for the amount of the withdrawal. The function should subtract the argument from the account balance. It should also increment the variable…
C++ Program: Random Number Guesser.
Write a derived class of the NumberGuesser class named RandomNumberGuesser. The derived class should override the behavior of the getCurrentGuess method. It may also add member data and its own constructor. It may also override the higher(), lower() and reset() methods as you see fit.
To get everyone started off on the same page I have written a NumberGuesser class. It is defined entirely in-line in the following file: NumberGuesser.h (Links to an external site.)
https://fog.ccsf.edu/~mluttrel/cs110b/NumberGuesser.h
In the current NumberGuesser class the getCurrentGuess() method returns the midpoint of the range of possible values. In your RandomNumberGuesser class the getCurrentGuess() method should return a randomly generated number in the range of possible values.
Note that repeated calls to getCurrentGuess() should always return the same value for both classes if neither the higher() or the lower() functions are called. Consider the…
In C++, if a member of a class is private, we cannot access it outside the class, but what if the member variable is protected?
Chapter 17 Solutions
EBK STARTING OUT W/JAVA:...DATA...
Ch. 17.1 - Prob. 17.1CPCh. 17.1 - When ArrayList is used as a non-generic class, why...Ch. 17.1 - Suppose we use the following statement to...Ch. 17.1 - Assume we have used the statement shown in...Ch. 17.2 - Prob. 17.5CPCh. 17.2 - Prob. 17.6CPCh. 17.2 - Prob. 17.7CPCh. 17.2 - Prob. 17.8CPCh. 17.3 - Prob. 17.9CPCh. 17.3 - Prob. 17.10CP
Ch. 17.3 - Prob. 17.11CPCh. 17.3 - Prob. 17.12CPCh. 17.3 - Prob. 17.13CPCh. 17.3 - Prob. 17.14CPCh. 17.4 - Prob. 17.15CPCh. 17.5 - Prob. 17.16CPCh. 17.5 - Prob. 17.17CPCh. 17.6 - Prob. 17.18CPCh. 17.6 - Prob. 17.19CPCh. 17.6 - Prob. 17.20CPCh. 17.8 - Prob. 17.21CPCh. 17.8 - Prob. 17.22CPCh. 17.9 - Prob. 17.23CPCh. 17.9 - During the process of erasure, when the compiler...Ch. 17.9 - Prob. 17.25CPCh. 17 - Prob. 1MCCh. 17 - Prob. 2MCCh. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Look at the following method header: void...Ch. 17 - Prob. 7MCCh. 17 - Prob. 8MCCh. 17 - Prob. 9MCCh. 17 - The process used by the Java compiler to remove...Ch. 17 - True or False: It is better to discover an error...Ch. 17 - Prob. 12TFCh. 17 - True or False: Type parameters must be single...Ch. 17 - Prob. 14TFCh. 17 - Prob. 15TFCh. 17 - True or False: You cannot create an array of...Ch. 17 - Prob. 17TFCh. 17 - Prob. 18TFCh. 17 - Prob. 1FTECh. 17 - Assume the following is a method header in a...Ch. 17 - public class MyClassT { public static void...Ch. 17 - public class PointT extends Number super Integer {...Ch. 17 - Assume there is a class named Customer. Write a...Ch. 17 - Assume names references an object of the...Ch. 17 - Prob. 3AWCh. 17 - Prob. 4AWCh. 17 - Prob. 5AWCh. 17 - Prob. 6AWCh. 17 - Prob. 7AWCh. 17 - Prob. 1SACh. 17 - Look at the following method header: public T...Ch. 17 - Prob. 3SACh. 17 - Do generic types exist at the bytecode level?Ch. 17 - Prob. 5SACh. 17 - When the compiler encounters a class, interface,...Ch. 17 - Prob. 1PCCh. 17 - Prob. 2PCCh. 17 - Prob. 3PCCh. 17 - Prob. 4PCCh. 17 - Prob. 5PCCh. 17 - Prob. 6PCCh. 17 - Prob. 7PC
Knowledge Booster
Similar questions
- The static data members and static member functions aren't quite what I'm going for in this particular instance.arrow_forwardC++ assigment: It's a Number Guesser assignment. It asks to write a derived class of the NumberGuesser class named RandomNumberGuesser. The derived class should override the behavior of the getCurrentGuess method. It may also add member data and its own constructor. It may also override the higher(), lower() and reset() methods as you see fit. This is the code for NumberGuesser class. It is defined entirely in-line in the following file: NumberGuesser.h // NumberGuesser.h // #ifndef NUMBERGUESSER_H #define NUMBERGUESSER_H #include <iostream> class NumberGuesser { protected: int low; int originalLow; int high; int originalHigh; public: NumberGuesser(int l, int h) { low = originalLow = l; high = originalHigh = h; } virtual int getCurrentGuess() { return (high + low) / 2; } virtual void higher() { low = getCurrentGuess() + 1; } virtual void lower() { high = getCurrentGuess() - 1; } virtual…arrow_forwardC++ assigment: It's a Number Guesser assignment. It asks to write a derived class of the NumberGuesser class named RandomNumberGuesser. The derived class should override the behavior of the getCurrentGuess method. It may also add member data and its own constructor. It may also override the higher(), lower() and reset() methods as you see fit. This is the code for NumberGuesser class. It is defined entirely in-line in the following file: NumberGuesser.h // NumberGuesser.h // #ifndef NUMBERGUESSER_H #define NUMBERGUESSER_H #include <iostream> class NumberGuesser { protected: int low; int originalLow; int high; int originalHigh; public: NumberGuesser(int l, int h) { low = originalLow = l; high = originalHigh = h; } virtual int getCurrentGuess() { return (high + low) / 2; } virtual void higher() { low = getCurrentGuess() + 1; } virtual void lower() { high = getCurrentGuess() - 1; } virtual…arrow_forward
- C++ program Create a base class and also a class that is derived from the base class. The base class needs to very generic, but would expect at least 4 data items. You must code getters and setters but it is OK to code in-line methods in the same file as this class. The derived class should use the public access specification. The code can be based on anything you like. Examples could be: Base Class Derived ClassMusic Instrument TrumpetCake Birthday or Wedding CakeAnimal Bear, Cat, or more general such as mammal, fish, etc Assignment: 1. In your main code, create an instance variable based on your base class and also an instance variable based on your derived class. 2. Set variable values for each instance. ( Call the setters). 3. Create a method that will display the values in both objects and call that method. This method should not be part of these classes. For this step, you pass both instances ( as 2 parameters ) to the method and the method can display the values.4. Create a…arrow_forwardDescribe how you can use an interface as an alternative to a class to specify the type for a parameter.arrow_forwardC++ Language Please Write a program that implements four classes: NPC, Flying, Walking, and Generic for a fantasy roleplaying game. Each class should have the following attributes and methods: NPC -a parent class that defines methods and an attribute common to all non-player characters (npc) in the game. a private string variable named name, for storing the name of the npc. a default constructor for setting name to "placeholder". an overloaded constructor that sets name to a string argument passed to it. setName - a mutator for updating the name attribute getName - an accessor for returning the npc name printStats - a pure virtual function that will be overridden by each NPC subclass. Flying - a subclass of NPC that defines a flying npc in the game a private int variable named flightSpeed for tracking the speed of the npc. a default constructor for setting flightSpeed to 0 and name to "Flying" using setName. setFlightSpeed - a mutator that accepts an integer as it's only argument…arrow_forward
- C++ In this problem, you will use the Bubble class to make images of colorful bubbles. You will use your knowledge of classes and objects to make an instance of the Bubble class (aka instantiate a Bubble), set its member variables, and use its member functions to draw a Bubble into an image. Every Bubble object has the following member variables: X coordinate Y coordinate Size (i.e. its radius) Color Complete main.cc Your task is to complete main.cc to build and draw Bubble objects based on user input. main.cc already does the work to draw the Bubble as an image saved in bubble.bmp. You should follow these steps: First, you will need to create a Bubble object from the Bubble class. Next, you must prompt the user to provide the following: an int for the X coordinate, an int for the Y coordinate, an int for the Bubble's size, and a std::string for the Bubble's color. Next, you must use the user's input to set the new Bubble object's x and y coordinates, the size, and the color using…arrow_forwardWhat must you do for classes with pointer member variables?arrow_forwardWhat are the three things that you are required to perform for classes that include member variables that are pointers?arrow_forward
- 1- Write a class that allows you to define complex numbers in C++ and call it complex. The class contains two private members named real and img. It also has a constructor to initialize its members to values other than zero. Then, write a four methods that implement the basic mathematical operations (+,-.*/) for two complex numbers. 2- The purpose of the method resize() in the IntegerArray class below is to dynamically change the size of the IntegerArray instance. This methid is implemented as follows: 1. create a new array with the desired size 2. copy the data form the old to new one 3. delete the old data 4. Make the old data pointer points to the newly created data 5. update the size field your task is to write the resize() method based on the above five steps. #include int main() { IntegerArray a(2); using namespace std; class IntegerArray { public: a.data[0] = 4; a.data[1] = 2; int *data; a.resize(5); int size; cout size = size; } -IntegerArray() { delete[] data; } void…arrow_forwardIn C++ class SaleItem{public:double getprice();void setprice(double);void setName(string);string getName();double TotalItemsPrice(int);private:double price;string name;}; In the class declaration above, what is the name of the class? Which lines have member access specifiers? Which lines contain data members of the class? Which lines contain accessor functions? Which lines contain mutator functions?arrow_forwardC++ Program Assignment 1: Inheritance Create a base class and also a class that is derived from the base class. The base class needs to very generic, but would expect at least 4 data items. You must code getters and setters but it is OK to code in-line methods in the same file as this class. The derived class should use the public access specification. The code can be based on anything you like. Examples could be: Base Class Derived ClassMusic Instrument TrumpetCake Birthday or Wedding CakeAnimal Bear, Cat, or more general such as mammal, fish, etcAssignment:1. In your main code, create an instance variable based on your base class and also an instance variable based on your derived class.2. Set variable values for each instance. ( Call the setters).3. Create a method that will display the values in both objects and call that method. This method should not be part of these classes. For this step, you pass both…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