Define an abstract class Shape with abstract methods area () and volume (). Derive abstract class Shape into two classes Cone and Cylinder. Write a java Program to calculate area and volume of Cone and Cylinder.(Use Super Keyword.)

 SLIP 3 Q 2

SAVE CODE AS         "AbstractShape.java"

import java.util.Scanner;

public class Slip3q2 {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        Shape shape;
        System.out.println("""
                ENTER YOUR CHOICE
                1. Cone
                2. Cylinder""");
        int choice = scanner.nextInt();
        if (choice==1){
            System.out.println("Enter radius");
            int radius = scanner.nextInt();
            System.out.println("Enter height");
            int height = scanner.nextInt();
            shape=new Cone(radius,height);
            shape.area();
            shape.volume();
        }else if (choice==2){
            System.out.println("Enter radius");
            int radius = scanner.nextInt();
            System.out.println("Enter height");
            int height = scanner.nextInt();
            shape=new Cylinder(radius,height);
            shape.area();
            shape.volume();
        }else {
            System.out.println("invalid input");
        }
    }
    abstract static class Shape{
        abstract void area();
        abstract void volume();
    }
    static class Cone extends Shape {
        int radius,height;
        Cone(int radius,int height){
            this.radius=radius;
            this.height=height;
        }
        void area(){
            float slant_height=(height*height)+(radius*radius);
            float area = (float)(Math.PI*radius*(radius+Math.sqrt(slant_height)));
            System.out.println("Area of Cone : "+area);
        }
        void volume(){
            float volume = (float)(Math.PI*radius*radius*(height/3));
            System.out.println("Volume of cone : "+volume);
        }
    }
    static class Cylinder extends Shape {
        int radius, height;
        Cylinder(int r,int h){
            radius =r;
            height =h;
        }
        public void area(){
            float area=(float)((2*Math.PI* radius * height)+(2*Math.PI* radius * radius));
            System.out.println("Area of Cylinder : "+area);
        }
        public void volume(){
            float volume=(float)(Math.PI* radius * radius * height);
            System.out.println("Volume of Cylinder : "+volume);
        }
    }
}

OUTPUT: