Basic Methods & String Manipulation

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            string name;    //Declaring variable "name" of string type
            name = "";  //Initializing variable "name" to null
            Console.WriteLine("Enter your full name plz."); //Print instruction for user to assign value to "name"
            name = Console.ReadLine();  //Actually assign user input to "name"
            DisplayFullName(name);  //Call DisplayFullName method sending value of "name"
            Console.ReadKey();  //Halts the program until user inputs a key
        }
        public static string GetFirstName (string name) //Method called in DisplayFullName
        {
            int space;  //Declaring variable "space" of integer type
            space = 0;  //Initializing variable "space" to null
            space = name.IndexOf(" ");  //Assigning index of space character in string "name" to integer "space"
            string fName;   //Declaring variable "fName" of string type
            fName = ""; //Initializing variable "fName" to null
            fName = name.Substring(0, space);   //Assigning value of "fName" to value of "name" from index of 0 to index represented by integer variable "space"
            return fName;   //Returning value of "fName"
        }
        public static string GetLastName(string name) //Method called in DisplayFullName
        {
            int space;  //Declaring variable "space" of integer type
            space = 0;  //Initializing variable "space" to null
            space = name.IndexOf(" ");  //Assigning index of space character in string "name" to integer "space"
            string lName;   //Declaring variable "lName" of string type
            lName = ""; //Initializing variable "lName" to null
            lName = name.Substring(space + 1);   //Assigning value of "lName" to value of "name" from index of 0 to index represented by integer variable "space" plus one to avoid including the space itself in "lName"
            return lName;   //Returning value of "lName"
        }
        public static void DisplayFullName (string name)    //Method called in Main
        {
            Console.WriteLine("Your first name is {0} and your last name is {1}.",GetFirstName(name), GetLastName(name));   //Call necessary methods and output information to console
        }
    }
}