1-) C# - Public class,void,string,int metodları, sınıfları

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace WindowsFormsApp1

{

    public partial class Form1 : Form

    {

        public Form1()

        {

            InitializeComponent();

        }

        private void button1_Click(object sender, EventArgs e)

        {

            //getir(); //1

            //string donen = A();       //2

            //Console.WriteLine(A());

            //int a = getir("ramazan");  //3

            //Console.WriteLine(a);

            //getir("Burak", 5); //4

            getir Ahmet = new getir(); //5

            Ahmet.naber();

            int k = Ahmet.c();

            string t = Convert.ToString(k);

            Console.WriteLine(t);

        }

        public class getir {         //5

            public int a = 5;

            public void naber()

            {

                Console.WriteLine("kanki");

            }

            public int c()

            {

                return 5;

            }

        }

        //public void getir(string a,int b) //4

        //{

        //    string k = a + b.ToString();

        //    Console.WriteLine(k);

        //}

        //public int getir(string c) //3

        //{

        //    int uzunluk = c.Length;

        //    return uzunluk;

        //}

        //public string A()      //2

        //{

        //    string c = "Naber";

        //    return c;

        //}

        //public void getir()     //1

        //{

        //    Console.WriteLine("A");

        //    Console.WriteLine("B");

        //}

    }

}