3D Shapes Area

import java.util.*;
public class ShapeArea3D
{
    public static void main(String args[])
    {
        int choice=0;
        double l=0.0,b=0.0,h=0.0,r=0.0,s=0.0,result=0.0;
        Scanner sc=new Scanner(System.in);
        System.out.println("1-To calculate area of cube");
        System.out.println("2-To calculate area of cuboid");
        System.out.println("3-To calculate area of sphere");
        System.out.println("4-To calculate area of cylinder");
        System.out.print("Enter your choice: ");
        choice=sc.nextInt();
        switch(choice)
        {
            case 1:
            {
                System.out.print("Side: ");
                s=sc.nextDouble();
                result=6*s*s;
                System.out.println("Area of cube: "+result);
                break;
                
            }
            case 2:
            {
                System.out.print("Length: ");
                l=sc.nextDouble();
                System.out.print("Breadth: ");
                b=sc.nextDouble();
                System.out.print("Height: ");
                h=sc.nextDouble();
                result=2*((l*b)+(b*h)+(h*l));
                System.out.println("Area of cuboid: "+result);
                break;
            }
            case 3:
            {
                System.out.print("Radius: ");
                r=sc.nextDouble();
                result=4*(22/7)*r*r;
                System.out.println("Area of sphere: "+result);
                break;
            }
            case 4:
            {
                System.out.print("Radius: ");
                r=sc.nextDouble();
                System.out.print("Height: ");
                h=sc.nextDouble();
                result=2*(22/7)*r*(r+h);
                System.out.println("Area of cylinder: "+result);
                break;
            }
            default:
            {
                System.out.println("Invalid choice");
            }
        }
    }
}