Java: Introduction to Problem Solving and Programming
7th Edition
ISBN: 9780133834604
Author: SAVITCH
Publisher: PEARSON
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Expert Solution & Answer
Chapter 8.2, Problem 17STQ
Explanation of Solution
a.
Given line:
Person p1 = new Student ();
Explanation:
The “Person” and “Student” are two classes. The class “Student” is the derived class and “Person” is the base class...
Explanation of Solution
b.
Given line:
Person p2 = new Undergraduate ();
Explanation:
The “Person” and “Undergraduate” are two classes...
Explanation of Solution
c.
Given line:
Student s1 = new Person ();
Explanation:
The “Person” and “Student” are two classes. The class “Student” is the derived class and “Person” is the base class...
Explanation of Solution
d.
Given line:
Student s2 = new Undergraduate ();
Explanation:
The “Undergraduate” and “Student” are two classes. The class “Undergraduate” is extend from the “Student” class...
Explanation of Solution
e.
Given line:
Undergraduate ug1 = new Person ();
Explanation:
The “Undergraduate” and “Person” are two classes. The class “Undergraduate” is extend from the “Student...
Explanation of Solution
f.
Given line:
Undergraduate ug2 = new Student ();
Explanation:
The “Undergraduate” and “Person” are two classes. The class “Undergraduate” is extend from the “Student...
Program Plan Intro
g.
“Object” class:
All classes in Java inherit from the “Object” class.
- • Directly and indirectly all classes are inherited from the “Object”class.
- • Some of the basic methods of the “Object” class are listed below:
- ○ clone()
- ○ toString()
- ○ equals()
The above methods are automatically created in java when a class is created.
Program Plan Intro
h.
“Object” class:
All classes in Java inherit from the “Object” class.
- • Directly and indirectly all classes are inherited from the “Object”class.
- • Some of the basic methods of the “Object” class are listed below:
- ○ clone()
- ○ toString()
- ○ equals()
The above methods are automatically created in java when a class is created.
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Students have asked these similar questions
Answer the following questions about the given statement:{co : Customer |co.classcredit >3 ∧∃c : Course • (co,c) ∈Books ∧¬c.private}•What does this statement mean?•Is this statement a set or a predicate?•What does the statement evaluate to based on the current system state?
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Q2:
Consider the following statements:
public class YClass
{
private int a;
private int b;
public void one()
{
}
public void two(int x, int y);
{
}
public YClass()
{
}
}
class XClass extends YClass
{
private int z;
public void one()
{
}
public XClass()
{
}
}
YClass yObject;
XClass xObject;
Write the definition of the default constructor of YClass so that the instance variables of YClass are initialized to 0.
Write the definition of the default constructor of XClass so that the instance variables of XClass are initialized to 0.
Write the definition of the method two of YClass so that the instance variable a is initialized to the value of the first parameter of two and the instance variable b is initialized to the value of the second parameter of two.
please I want solution :(
Although the book focused on the normalization process only up to the Third Normal Form (3NF), there are actually four more commonly recognized normal forms – Boyce-Codd Normal Form (BCNF), Fourth Normal Form (4NF), Fifth Normal Form (5NF), and Sixth Normal Form (6NF). Research the uses of these other normal forms, then pick one to give a brief explanation of to the class. please pick one .
Chapter 8 Solutions
Java: Introduction to Problem Solving and Programming
Ch. 8.1 - Prob. 1STQCh. 8.1 - Suppose the class SportsCar is a derived class of...Ch. 8.1 - Suppose the class SportsCar is a derived class of...Ch. 8.1 - Can a derived class directly access by name a...Ch. 8.1 - Can a derived class directly invoke a private...Ch. 8.1 - Prob. 6STQCh. 8.1 - Suppose s is an object of the class Student. Base...Ch. 8.2 - Give a complete definition of a class called...Ch. 8.2 - Add a constructor to the class Student that sets...Ch. 8.2 - Rewrite the definition of the method writeoutput...
Ch. 8.2 - Rewrite the definition of the method reset for the...Ch. 8.2 - Can an object be referenced by variables of...Ch. 8.2 - What is the type or types of the variable(s) that...Ch. 8.2 - Prob. 14STQCh. 8.2 - Prob. 15STQCh. 8.2 - Consider the code below, which was discussed in...Ch. 8.2 - Prob. 17STQCh. 8.3 - Prob. 18STQCh. 8.3 - Prob. 19STQCh. 8.3 - Is overloading a method name an example of...Ch. 8.3 - In the following code, will the two invocations of...Ch. 8.3 - In the following code, which definition of...Ch. 8.4 - Prob. 23STQCh. 8.4 - Prob. 24STQCh. 8.4 - Prob. 25STQCh. 8.4 - Prob. 26STQCh. 8.4 - Prob. 27STQCh. 8.4 - Prob. 28STQCh. 8.4 - Are the two definitions of the constructors given...Ch. 8.4 - The private method skipSpaces appears in the...Ch. 8.4 - Describe the implementation of the method drawHere...Ch. 8.4 - Is the following valid if ShapeBaSe is defined as...Ch. 8.4 - Prob. 33STQCh. 8.5 - Prob. 34STQCh. 8.5 - What is the difference between what you can do in...Ch. 8.5 - Prob. 36STQCh. 8 - Consider a program that will keep track of the...Ch. 8 - Implement your base class for the hierarchy from...Ch. 8 - Draw a hierarchy for the components you might find...Ch. 8 - Suppose we want to implement a drawing program...Ch. 8 - Create a class Square derived from DrawableShape,...Ch. 8 - Create a class SchoolKid that is the base class...Ch. 8 - Derive a class ExaggeratingKid from SchoolKid, as...Ch. 8 - Create an abstract class PayCalculator that has an...Ch. 8 - Derive a class RegularPay from PayCalculator, as...Ch. 8 - Create an abstract class DiscountPolicy. It should...Ch. 8 - Derive a class BulkDiscount from DiscountPolicy,...Ch. 8 - Derive a class BuyNItemsGetOneFree from...Ch. 8 - Prob. 13ECh. 8 - Prob. 14ECh. 8 - Create an interface MessageEncoder that has a...Ch. 8 - Create a class SubstitutionCipher that implements...Ch. 8 - Create a class ShuffleCipher that implements the...Ch. 8 - Define a class named Employee whose objects are...Ch. 8 - Define a class named Doctor whose objects are...Ch. 8 - Create a base class called Vehicle that has the...Ch. 8 - Create a new class called Dog that is derived from...Ch. 8 - Define a class called Diamond that is derived from...Ch. 8 - Prob. 2PPCh. 8 - Prob. 3PPCh. 8 - Prob. 4PPCh. 8 - Create an interface MessageDecoder that has a...Ch. 8 - For this Programming Project, start with...Ch. 8 - Modify the Student class in Listing 8.2 so that it...Ch. 8 - Prob. 8PPCh. 8 - Prob. 9PPCh. 8 - Prob. 10PP
Knowledge Booster
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