this is JAVA. Every cylinder has a base and height, wherein the base is a circle

Question

this is JAVA. Every cylinder has a base and height, wherein the base is a circle. Design a class, cylinderType, that can capture the properties of a cylinder and perform the usual operations on the cylinder. Derive this class from the class circleType design. Some of the operations that can be performed on a cylinder are as follows: calculate and print the volume, calculate and print the surface area, set the height, set the radius of the base, and set the center of the base. Also, write a program to test various operations on a cylinder.

Explanation / Answer

1. CircleType.java

public class CircleType {
   double radius;
   public double getRadius() {
       return radius;
   }
   public void setRadius(double radius) {
       this.radius = radius;
   }
}

2. CylinderType.java

public class CylinderType extends CircleType {
   double height;
   public double getHeight() {
       return height;
   }
   public void setHeight(double height) {
       this.height = height;
   }
   public double volume(){
       return (3.14)*(this.radius * this.radius)*(this.height);
   }
   public double surfaceArea(){
      
       double>        double two = 2*3.14*this.radius*this.radius;
       return one+two;
   }
}

3. Driver.java

import java.util.Scanner;
public class Driver {
   public static void main(String[] args) {
       CylinderType cylinder = new CylinderType();
       Scanner sc = new Scanner(System.in);
       System.out.println("Enter Radius: ");
       double r = Double.valueOf(sc.nextLine());
       System.out.println("Enter Height: ");
       double h = Double.valueOf(sc.nextLine());
       cylinder.setRadius(r);
       cylinder.setHeight(h);
       System.out.println(cylinder.volume());
       System.out.println(cylinder.surfaceArea());
   }
}

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