You have to create a program that can compute the Surface Area and Volumes of va
ID: 3548567 • Letter: Y
Question
You have to create a program that can compute the Surface Area and Volumes of various containers that are all "Right Prisms". This means that the ends of the container are identical and the sides are perpendicular to the ends. Each of your containers has different shapes: Circular, Rectangular, Triangular, and Regular Polygon. All of these containers are derived from a common abstract Container class. You will then create a class called ContainerCollection which will contain an array of all of the possible Container classes. This class will provide methods to compute the totalVolume and the totalSurfaceArea of all Containers in the ContainerCollection. The geometric equations for area and perimeter are provided for the required shapes as follows:
Perimeter Calculations (for your getTopPerimeter methods)
- Circle-
return 2.0 * Math.PI * radius; - Rectangle-
return 2.0 * (width + length); - Triange-
return side_a + side_b + side_c; - Regular Polygon-
return numSides * side;
Area Calculations (for your getTopArea methods)
- Circle-
return Math.PI * radius * radius; - Rectangle-
return width * length; - Triange-
double s = (side_a + side_b + side_c)/2.0;
return Math.sqrt(s*(s-side_a)*(s-side_b)*(s-side_c)); - Regular Polygon-
return numSides * side * side / ( 4*Math.tan(Math.PI/numSides));
Explanation / Answer
abstract class Container {
double height;
Container(double height)
{
this.height = height;
}
abstract double getTopArea();
abstract double getTopPerimeter();
double getVolume()
{
return height * getTopArea();
}
double getSurfaceArea()
{
return 2*getTopArea() + height * getTopPerimeter();
}
}
class CircularContainer extends Container
{
// add appropriate data definitions
double radius;
CircularContainer(double height, double radius)
{
super(height);
this.radius = radius;
}
// implement required abstract methods
double getTopArea()
{
return Math.PI * radius * radius;
}
double getTopPerimeter()
{
return 2.0 * Math.PI * radius;
}
}
class RectangularContainer extends Container
{
// add appropriate data definitions
double width;
double length;
RectangularContainer(double height, double width, double length)
{
// Fill in details
super(height);
this.width = width;
this.length = length;
}
// implement required abstract methods
double getTopArea()
{
return width * length;
}
double getTopPerimeter()
{
return 2.0 * (width + length);
}
}
class TriangularContainer extends Container
{
// add appropriate data definitions
double side_a, side_b, side_c;
TriangularContainer(double height, double side_a, double side_b, double side_c)
{
// Fill in details
super(height);
this.side_a = side_a;
this.side_b = side_b;
this.side_c = side_c;
}
// implement required abstract methods
double getTopArea()
{
double s = (side_a + side_b + side_c)/2.0;
return Math.sqrt(s*(s-side_a)*(s-side_b)*(s-side_c));
}
double getTopPerimeter()
{
return side_a + side_b + side_c;
}
}
class RegularPolygonContainer extends Container
{
// add appropriate data definitions
double side;
int numSides;
RegularPolygonContainer(double height, double side, int numSides)
{
// Fill in details
super(height);
this.side = side;
this.numSides =numSides;
}
// implement required abstract methods
double getTopArea()
{
return numSides * side * side / ( 4*Math.tan(Math.PI/numSides));
}
double getTopPerimeter()
{
return numSides * side;
}
}
class ContainerCollection
{
Container[] collection;
int numContainers;
int containerCount;
double totalv;
double totala;
ContainerCollection(int numContainers)
{
// Fill in details
this.numContainers = numContainers;
this.containerCount =0;
this.totalv=0;
this.totala=0;
collection = new Container[numContainers];
}
void addContainer( Container c) throws NullPointerException
{
// Fill in details
// Don't forget to check to see if there is enough room
// in collection before adding. Complain if you can't add Container.
if(containerCount>=numContainers)
{
System.out.println("Sorry no more containers allowed");
}
else
{
collection[containerCount] = c;
containerCount++;
}
}
double getTotalVolume()
{
// Fill in details to return the total volume of
// all Containers in collection
for(int i=0;i<containerCount;i++)
{
totalv+=collection[i].getVolume();
}
return totalv;
}
double getTotalSurfaceArea()
{
// Fill in details to return the total surface area of
// all Containers in collection
for(int i=0;i<containerCount;i++)
{
totala+=collection[i].getSurfaceArea();
}
return totala;
}
public static void main(String[] args) throws Exception
{
ContainerCollection cc = new ContainerCollection(10);
cc.addContainer(new CircularContainer(10., 2.0)); // height, radius
cc.addContainer(new RectangularContainer(10., 2.0, 3.0)); // height, width, length
cc.addContainer(new TriangularContainer(10., 4.0, 3.0, 5.0)); // height, side_a, side_b, side_c
cc.addContainer(new RegularPolygonContainer(10., 1.0, 4)); // height, side, num_sides
cc.addContainer(new CircularContainer(5., 2.0)); // height, radius
cc.addContainer(new RectangularContainer(5., 2.0, 3.0)); // height, width, length
cc.addContainer(new TriangularContainer(5., 4.0, 3.0, 5.0)); // height, side_a, side_b, side_c
cc.addContainer(new RegularPolygonContainer(5., 1.0, 4)); // height, side, num_sides
cc.addContainer(new CircularContainer(2., 2.0)); // height, radius
cc.addContainer(new RectangularContainer(2., 2.0, 3.0)); // height, width, length
cc.addContainer(new TriangularContainer(2., 4.0, 3.0, 5.0)); // height, side_a, side_b, side_c
cc.addContainer(new RegularPolygonContainer(2., 1.0, 4)); // height, side, num_sides
System.out.println("Total Volume of all containers = " + cc.getTotalVolume());
System.out.println("Total Surface Area of all containers = " + cc.getTotalSurfaceArea());
ContainerCollection cc2 = new ContainerCollection(2);
cc2.addContainer(new RectangularContainer(5.504, 2.0, 3.0)); // height, width, length
cc2.addContainer(new RectangularContainer(9., 2.0, 3.0)); // height, width, length
cc2.addContainer(new RectangularContainer(8., 2.0, 3.0)); // height, width, length
System.out.println("Total Volume of all containers for cc2 = " + cc2.getTotalVolume());
}
}
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.