Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
3rd Edition
ISBN: 9780134038179
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 4FTE
Find the error in the following class:
public class TwoValues
{
private int x, y;
public TwoValues()
{
x = 0;
}
public TwoValues()
{
x = 0;
y = 0;
}
}
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3. Problem Description: Define the Circle2D class that contains:
Two double data fields named x and y that specify the center of the circle with get
methods.
• A data field radius with a get method.
•
A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius.
•
A constructor that creates a circle with the specified x, y, and radius.
•
A method getArea() that returns the area of the circle.
•
A method getPerimeter() that returns the perimeter of the circle.
•
•
•
A method contains(double x, double y) that returns true if the specified point (x, y) is inside
this circle. See Figure (a).
A method contains(Circle2D circle) that returns true if the specified circle is inside this
circle. See Figure (b).
A method overlaps (Circle2D circle) that returns true if the specified circle overlaps with this
circle. See the figure below.
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(a)
(b)
(c)<
Figure (a) A point is inside the circle. (b) A circle is inside another circle.
(c) A circle overlaps another…
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Chapter 6 Solutions
Starting Out with Java: From Control Structures through Data Structures (3rd Edition)
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