Class createSphere.java

This program aims at:
1. Showing the overall structure of a Java application program
2. Defining class
3. Differentiating between class variables and instance variables
4. Differentiating between class methods and instance methods
5. Defining constructors and to show that constructors can be overloaded
6. Creating instances (objects) of a class
7. Invoking class methods as well as instance methods

*/


public class CreateSphere
{
  public static void main(String[] args)
  {
	 Sphere ball, globe;
        
	 System.out.println("Number of objects created so far = " + Geometry.Sphere.getCount());
	 System.out.println();

	 ball = new Sphere(4.0, 0.0, 0.0, 0.0);   
	 System.out.println("Number of objects = " + ball.getCount());

	 globe = new Sphere(12., 1.0, 1.0, 1.0); 
	 System.out.println("Number of objects = " + globe.getCount());

	 Sphere thirdBall = new Sphere(100, 20.0, 30.0);
	 System.out.println("Number of objects = " + thirdBall.getCount());

	 Sphere oddBall = new Sphere(); System.out.println("Number of objects = " + oddBall.getCount());

	 Sphere copyThirdBall = new Sphere(thirdBall); 
	 System.out.println("Number of objects = " + copyThirdBall.getCount());
	
	 Sphere enlargeThirdBall = new Sphere(thirdBall, 10); 
	 System.out.println("Number of objects = " + enlargeThirdBall.getCount());

	 System.out.println();

	 System.out.println("ball volume             = " + ball.volume());
	 System.out.println("globe volume            = " + globe.volume());
	 System.out.println("thirdBall volume        = " + thirdBall.volume());
	 System.out.println("oddBall volume          = " + oddBall.volume());
	 System.out.println("copyThirdBall volume    = " + copyThirdBall.volume());
	 System.out.println("enlargeThirdBall volume = " + enlargeThirdBall.volume());
   }
}