Question

Write an application, CylinderStats, that reads the radius and height of a cylinder and prints its surface area and volume. Use the following formulas. Print the output to five decimal places. In the formulas, represents the radius and the height.Surface are

2πr(r+ h)

Volume:πr2h

Design and implement a class Cylinder that contains instance data that represents the cylinder’s radius and height. Define a Cylinder constructor to accept and initialize the radius and height.Include getter and setter methods for all instance variables. Include methods that calculate and return the volume and surface area of the cylinder (see preceding problem for formulas). Include a toString method that returns a two-line description of the cylinder(radius and height on separate lines). Create a driver class, MultiCylinder, that instantiates and updates two Cylinder objects, printing their radius and height before and after modification, and prints the final volume and surface area of each cylinder

Answer 1

1) Cylinder .java

public class Cylinder {
  
   final float pie =3.14f;
   int radius;
   int height;
  
   //constructor to initialise values
   public Cylinder(int radius, int height) {
       super();
       this.radius = radius;
       this.height = height;
   }
  
  
   //getter setter of radius and height of cylinder
   public int getRadius() {
       return radius;
   }
   public void setRadius(int radius) {
       this.radius = radius;
   }
   public int getHeight() {
       return height;
   }
   public void setHeight(int height) {
       this.height = height;
   }
  
  
   //volume function to calculate volume of cylinder
   public double volume()
   {
       return pie*radius*2*height;
      
   }
  
   //surface area function to calculate surface area of cylinder

   public double surfacearea()
   {
       return 2*pie*radius*(radius+ height);
   }
  
  
   //tostring method to print object in string format
   @Override
   public String toString() {
       return "Cylinder [pie=" + pie + ", radius=" + radius + ", height=" + height + "]";
   }

}

/////

MultiCylinder.java

public class MultiCylinder {
  
   public static void main(String[] args) {
      
//instantiate objecs of cylinder and assigning the value radius and height through constructor
       Cylinder c1=new Cylinder(5,143);
       Cylinder c2=new Cylinder(8,159);
      
      
      
       System.out.println(c1.getRadius());
       System.out.println(c1.getHeight());
      
       System.out.println(c2.getRadius());
       System.out.println(c2.getHeight());
      
       System.out.println(c1);
       System.out.println(c2);
      
      
       //calling methods to print volume and surface area of cylinder
       System.out.println("volume of cylinder 1 is"+c1.volume());
      
       System.out.println("volume of cylinder 2 is"+c2.volume());
      
       System.out.println("Surface area of cyinder 1 is"+c1.surfacearea());
      
       System.out.println("Surface area of cyinder 1 is"+c2.surfacearea());

      
   }
  

  
  

}

//////

Below i am attaching the screenshots of running code so that you can refer to it

screenshot of main function

You can refer the above screnshots for your code identation.

Thank You!!!