Practise set of CHapter 9

 package com.company;

class sphere{
    private double radius;
    private double height;

    public double getRadius() {
        return radius;
    }

    public void setRadius(double radius) {
        this.radius = radius;
    }

    public double getHeight() {
        return height;
    }

    public void setHeight(double height) {
        this.height = height;
    }
}
class  rectangle2 {
    private double length;
    private double breadth;

    public rectangle2() {
        this.length =5 ;
        this.breadth =4;
    }
    public rectangle2(double length, double breadth) {
        this.length = length;
        this.breadth = breadth;
    }
    public double getLength() {
        return length;
    }
    public double getBreadth() {
        return breadth;
    }


}
//    int height;
//    int radius;
//    public cylinder(int x, int y) {
//       height=x;
//       radius=y;
//    }
//    public double surfaceArea(){
//        return 2*Math.PI*radius*(height+radius);
//    }
//    public double volume(){
//        return Math.PI*radius*radius*height;
//    }
//  /* private int radius;
//   private int height;
//    //    for radius
//    public void setRadius(int r){
//        radius=r;
//    }
//    public int getRadius(){
//        return radius;
//    }
//    for height
//    public void setHeight(int h){
//        height=h;
//    }
//    public int getHeight(){
//        return height;
//    }
//    public double surfaceArea(){
//        return (2 *Math.PI  * radius* height+ 2*Math.PI *radius*radius);
//    }
//    public double volume(){
//        return (Math.PI*radius*radius*height);
//    }



public class CWH_44_PractiseSet {
    public static void main(String[] args) {
//        cylinder prop=new cylinder();
//        Problem 1
//        prop.setRadius(9);
//        System.out.println(prop.getRadius());
//        prop.setHeight(12);
//        System.out.println(prop.getHeight());
////        Problem 2
//        System.out.println(prop.surfaceArea());
//        System.out.println(prop.volume());

//        Problem 3
//        cylinder prop= new cylinder(5,6);
//        System.out.println(prop.surfaceArea());
//        System.out.println(prop.volume()
//        );

//        Problem 5
//        rectangle2 r= new rectangle2(12,56);
//        System.out.println(r.getLength());
//        System.out.println(r.getBreadth());

// problem 6
 sphere sc= new sphere();
 sc.setHeight(8);
 sc.setRadius(4);
        System.out.println(sc.getHeight());
        System.out.println(sc.getRadius());
    }
}