Java: An Introduction to Problem Solving and Programming (8th Edition)
8th Edition
ISBN: 9780134462035
Author: Walter Savitch
Publisher: PEARSON
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Textbook Question
Chapter 8.2, Problem 9STQ
Add a constructor to the class Student that sets the student’s name to a given argument string and sets the student’s number to zero. Your constructor should invoke another constructor in Student to accomplish this.
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Problem Class
In this exercise, you are going to create the Problem class. The Problem class is used
to help simulate a math fact, for example:
2+5=
Your class needs to contain two constructors, one that takes String, int, int that
represents the operator sign(+,-, *, or /), the minimum, and maximum values for the
number range, and a second constructor that takes only a String that represents the
operator sign. For the second constructor, the minimum should default to zero and the
maximum to ten.
Your Problem object should generate 2 random integers between the minimum and
maximum values (inclusively). Each Problem object should only have one set of
numbers that do not change.
While you may include additional helper methods, two methods need to be available
to the user. The first is the answer method that should return a double that represents
the answer to the problem.
The second is the toString that should return a String that represents the problem. The
format should be:
number…
It is customary that we write this method to return a string representation of objects in a class.
constructor
mutator
toString
accessor
-int x //x coord of the center
-int y // y coord of the center
-int radius
-static int count // static variable to keep count of number of circles created
+ Circle() //default constructor that sets origin to (0,0) and radius to 1
+Circle(int x, int y, int radius) // regular constructor
+getX(): int
+getY(): int
+getRadius(): int
+setX(int newX: void
+setY(int newY): void
+setRadius(int newRadius):void
+getArea(): double // returns the area using formula pi*r^2
+getCircumference // returns the circumference using the formula 2*pi*r
+toString(): String // return the circle as a string in the form (x,y) : radius
+getDistance(Circle other): double // * returns the distance between the center of this circle and the other circle
+moveTo(int newX,int newY):void // * move the center of the circle to the new coordinates
+intersects(Circle other): bool //* returns true if the center of the other circle lies inside this circle else returns false
+resize(double scale):void// * multiply the…
Chapter 8 Solutions
Java: An Introduction to Problem Solving and Programming (8th Edition)
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 an advantage of having the main...Ch. 8.5 - What Java construct allows us to define and...Ch. 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 - Create a JavaFX application that uses a TextField...Ch. 8 - Prob. 10PP
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