University of South Carolina Aiken GeometricObject Programming Questions

Thisassignmentcontainsfour classes.

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First class: GeometricObject

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Attributes:

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private String color;

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private double weight;

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Default constructor

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public GeometricObject( )

{

color = “white”;weight = 1.0; }

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Another constructor

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public GeometricObject(String color, double weight)

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{ this.color = color; this.weight = weight; }

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Getters and setters

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public String getColor( ) { return color; }

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public void setColor( String color ) { this.color = color; }

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public double getWeight() { return weight; }

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public void setWeight( double weight ) { this.weight = weight;}

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Two methods to be overridden

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public double calculateArea();

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public double calculatePerimeter();

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Second class: Circlethat extends the class GeometricObject to represent circles. You are asked to provide the overridden definitions of the two methods.

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public class Circle extends GeometricObject

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private double radius;

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// Default constructor

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public Circle( ) {}

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// Construct circle with specified radius

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public Circle( double radius ) {}

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// Construct a circle with specified radius, weight, and color

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public Circle( String color, double weight, double radius ) {}

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//Getters and setters

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public double getRadius( ){}

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public void setRadius( double radius ){}

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Two overriding methods

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public double calculateArea() { };

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public double calculatePerimeter() {};

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}

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Third Class: Rectanglethat extends the class GeometricObject to represent rectangles. You are asked to provide the overridden definitions of the two methods.

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public class Rectangleextends GeometricObject

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private double width;

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private double height;

undefined// Default constructorundefined

public Rectangle ( ) {}

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// Another constructor with given parameters

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public Rectangle ( double width, double height, String color, String weight ) {};

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// Getters and setters for instance variables: width and height

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// Two overriding methods

undefinedpublic double calculateArea() { };undefinedpublic double calculatePerimeter() {};undefined

}

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Fourth class:

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In the main program, use (one) super class reference and subclass objects to do the following:

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Create two different Circle objects using the two respective constructors, and then let these different objects call the overridden methods to display their areas and perimeters respectively.

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Create two different Rectangle objects using the two respective constructors, and then let these different objects call the overridden methods to display their areas and perimeters respectively.

This assignment contains four classes.
First class: GeometricObject
Attributes:
private String color;
private double weight;
Default constructor
public GeometricObject( ) { color = “white”; weight = 1.0; }
Another constructor
public GeometricObject(String color, double weight)
{ this.color = color; this.weight = weight; }
Getters and setters
public String getColor( ) { return color; }
public void setColor( String color ) { this.color = color; }
public double getWeight() { return weight; }
public void setWeight( double weight ) { this.weight = weight; }
Two methods to be overridden
public double calculateArea();
public double calculatePerimeter();
Second class: Circle that extends the class GeometricObject to represent circles. You are
asked to provide the overridden definitions of the two methods.
public class Circle extends GeometricObject
{
private double radius;
// Default constructor
public Circle( ) { }
// Construct circle with specified radius
public Circle( double radius ) { }
// Construct a circle with specified radius, weight, and color
public Circle( String color, double weight, double radius ) {
}
// Getters and setters
public double getRadius( ){ }
public void setRadius( double radius ){
Two overriding methods
public double calculateArea() {
};
public double calculatePerimeter() {
}
};
}
Third Class: Rectangle that extends the class GeometricObject to represent rectangles.
You are asked to provide the overridden definitions of the two methods.
public class Rectangle extends GeometricObject
{
private double width;
private double height;
// Default constructor
public Rectangle ( ) {
}
// Another constructor with given parameters
public Rectangle ( double width, double height, String color, String weight ) {
};
// Getters and setters for instance variables: width and height
// Two overriding methods
public double calculateArea() {
};
public double calculatePerimeter() {
};
}
Fourth class:
In the main program, use (one) super class reference and subclass objects to do the
following:
1. Create two different Circle objects using the two respective constructors, and then
let these different objects call the overridden methods to display their areas and
perimeters respectively.
2. Create two different Rectangle objects using the two respective constructors, and
then let these different objects call the overridden methods to display their areas
and perimeters respectively.