MyLab Programming with Pearson eText -- Access Code Card -- for Starting Out with Java: From Control Structures through Objects
7th Edition
ISBN: 9780134793672
Author: GADDIS
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 7PC
Circle Class
Write a Circle class that has the following fields:
- radius: a double
- PI: a final double initialized with the value 3.14159
The class should have the following methods:
- Constructor. Accepts the radius of the circle as an argument.
- Constructor. A no-arg constructor that sets the radi us 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 as
area = PI * radius * radius
- diameter. Returns the diameter of the circle, which is calculated as
diameter = radius * 2
- circumference. Returns the circumference of the circle, which is calculated as
circumference = 2 * PI * radius
Write a
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True or false: Just as a class can have multiple constructors, it can also have multiple destructors.
Assignment:The BankAccount class models an account of a customer. A BankAccount has the followinginstance variables: A unique account id sequentially assigned when the Bank Account is created. A balance which represents the amount of money in the account A date created which is the date on which the account is created.The following methods are defined in the BankAccount class: Withdraw – subtract money from the balance Deposit – add money to the balance Inquiry on:o Balanceo Account ido Date created
Write a Circle class that has the following field:
• radius: a double
The class should have the following methods:
no-arg constructor
constructor: accepts the radius of the circle as an argument.
setRadius: A mutator method for the radius field.
getRadius: An accessor method for the radius field.
getArea: returns the area of the circle.
getDiameter: returns the diameter of the circle.
getCircumference: returns the circumference of the circle
Write a program that demonstrates the use of 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.
Chapter 6 Solutions
MyLab Programming with Pearson eText -- Access Code Card -- for Starting Out with Java: From Control Structures through Objects
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,...
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