Contoh Sript Java switch case (Menghitung luas dan keliling persegi panjang, persegi, dan lingkaran)

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

namespace ConsoleApplication3

{

    class Program

    {

        static void Main(string[] args)

        {

            Menu :

            int pil;

            Console.WriteLine("Menu Hitung Bangun Datar");

            Console.WriteLine("1. Luas & Keliling Persegi Panjang");

            Console.WriteLine("2. Luas & Keliling Persegi");

            Console.WriteLine("3. Luas & Keliling Lingkaran");

            Console.WriteLine("4. Keluar Program");

            Console.WriteLine("Masukkan Pilihan Menu Anda [1,2,3,4]: ");

            string input;

            input = Console.ReadLine();

            int.TryParse(input, out pil);

            Console.Clear();

            switch (pil)

            {

                case 1: Console.WriteLine("1. Luas & Keliling Persegi Panjang");

                    int pjng, lbar,  luas, keliling;

                    Console.Write("masukan panjang : ");

                    pjng = int.Parse(Console.ReadLine());

                    Console.Write("masukan lebar : ");

                    lbar = int.Parse(Console.ReadLine());

                    luas = pjng * lbar;

                    keliling = 2*(pjng + lbar);

                    Console.WriteLine("luas = "+luas);

                    Console.WriteLine("keliling = "+keliling);

                    Console.ReadLine();

                    Console.Clear();

                    goto Menu;

                    break;

                case 2: Console.WriteLine("2. Luas & Keliling Persegi");

                    int sisi, luas1, keliling1;

                    Console.Write("masukan sisi : ");

                    sisi = int.Parse(Console.ReadLine());

                    luas1 = sisi*sisi;

                    keliling1 = 4*sisi;

                    Console.WriteLine("luas1 = " + luas1);

                    Console.WriteLine("keliling1 = " + keliling1);

                    Console.ReadLine();

                    Console.Clear();

                    goto Menu;

                    break;

                case 3: Console.WriteLine("3. Luas & Keliling Lingkaran");

                    double ph=3.14 ,d,r, luas2, keliling2;

                    Console.Write("masukan d : ");

                    d = int.Parse(Console.ReadLine());

                    Console.Write("masukan r : ");

                    r = int.Parse(Console.ReadLine());

                    luas2 = ph*r*r;

                    keliling2 = 4*ph*d;

                    Console.WriteLine("luas2 = " + luas2);

                    Console.WriteLine("keliling2 = " + keliling2);

                    Console.ReadLine();

                    Console.Clear();

                    goto Menu;

                    break;

                    Console.ReadLine();

                    Console.Clear();

                    goto Menu;

                    break;

        }

    }

   }

}

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