Using Java programming Language

For this exercise: want to calculate volume and surface for a sphere, a cube, a rectangular solid, and a pyramid.

Look up the appropriate formulas for these geometric solids; then modify your code given for the 2DShape program to yield the volume and surface area parameters.

Don't forget to give source code, snapshot of output, and Excel spreadsheet

//demo to show simple class hierarchy

class TwoDShape {

//class TwoDShape is the "superclass"

double width;

double height;

void showDim(){

System.out.println("Width and height are " + width + " and " + height);

}

}

//Class Triangle is the subclass of TwoDShape

class Triangle extends TwoDShape {

String style;

double area() {return width*height/2;

}

void showStyle(){

System.out.println("Triangle is " + style);

}

}

//class Rectangle is a subclass of the superclass TwoDShape

class Rectangle extends TwoDShape

{

String style;

boolean isSquare(){

if(width==height) return true;

return false;}

double area()

{

return width*height;

}

void showStyle(){

System.out.println("Rectangle is " + style);

}

}

//

class Shapes {

//public static void main(String args[]){

public static void main(String args[]){

//defining objects triangle and rectangle

Triangle t1 = new Triangle();

Triangle t2 = new Triangle();

Rectangle r1 = new Rectangle();

Rectangle r2 = new Rectangle();

//define variables for objects

//triangle

t1.width = 4.0;

t1.height = 4.0;

t1.style = "isosceles";

t2.width = 8.0;

t2.height = 12.0;

t2.style = "right";

//rectangle

r1.width=8.0;

r1.height=8.0;

r1.style="square";

r2.width=6.0;

r2.height=10.0;

r2.style="rectangle";

//display for triangle

System.out.println("Info for t1: ");

t1.showStyle();

t1.showDim();

System.out.println("Area is " + t1.area());

System.out.println();

System.out.println("Info for t2: ");

t2.showStyle();

t2.showDim();

System.out.println("Area is " + t2.area());

System.out.println();

//display for rectangle

System.out.println("Info for r1: ");

r1.showStyle();

r1.showDim();

System.out.println("Area is " + r1.area());

System.out.println();

System.out.println("Info for r2: ");

r2.showStyle();

r2.showDim();

System.out.println("Area is " + r2.area());

}

}