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Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Question
Chapter 5, Problem 31PP
Program Plan Intro
Volume and surface area of frustum cone
Program Plan:
- Include the required “import” statement.
- Define the “Test” class.
- Declare the “pi” value
- Define the “volume” method
- Calculate the volume of the frustum cone and return the result.
- Define the “surface_area” method
- Calculate the surface area of the frustum cone and return the result.
- Define the main method using “public static main”.
- Declare the required variables with the values.
- Call the “volume” and “surface_area” methods by passing the values to the method.
- Display the output.
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3. Problem Description: Define the Circle2D class that contains:
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• A data field radius with a get method.
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A no-arg constructor that creates a default circle with (0, 0) for (x, y) and 1 for radius.
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A constructor that creates a circle with the specified x, y, and radius.
•
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•
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•
•
•
A method contains(double x, double y) that returns true if the specified point (x, y) is inside
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A method overlaps (Circle2D circle) that returns true if the specified circle overlaps with this
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Figure (a) A point is inside the circle. (b) A circle is inside another circle.
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Chapter 5 Solutions
Big Java Late Objects
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