Bài 3 C#

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

namespace Test
{
    class Student
    {
        /*private string _name;
        private string _code;
        private int _age;*/

        public string Name { get; set; }
        public string Code { get; set; }
        public int Age { get; set; }

        /*public Student( string name, string code, int age)
        {
            Name = name;
            Code = code;
            Age = age;
        }*/

        public void InputInfo()
        {
            Name = Console.ReadLine();
            Code = Console.ReadLine();
            Age = int.Parse(Console.ReadLine());
        }
        public void ShowInfo()
        {
            Console.WriteLine("Name: {0}, id: {1}, age: {2}", Name, Code, Age);
        }
    }
    class Class
    {
        //private Student[] _stdList;
        //private int _ratingStar;

        public Student[] StdList { get; set; }
        public int RatingStar { get; set; }
        public int n { get; set; }
        public string Leader { get; set; }
        private void InputStudent()
        {
            n = int.Parse(Console.ReadLine());
            StdList = new Student[n];
            for (int i = 0; i < n; i++)
            {
                StdList[i] = new Student();
                StdList[i].InputInfo();
            }
        }
        private void ShowStudent()
        {
            for (int i = 0; i < n; i++) StdList[i].ShowInfo();
        }
        public void InputClassInfo()
        {
            Leader = Console.ReadLine();
            RatingStar = int.Parse(Console.ReadLine());
            InputStudent();
        }
        public void ShowClassInfo()
        {
            Console.WriteLine("Leader is " + Leader);
            Console.WriteLine("Rating Star = " + RatingStar);
            ShowStudent();
        }


    }
    class RunMain
    {
        static void Main(string[] args)
        {
            Class a = new Class();
            a.InputClassInfo();
            a.ShowClassInfo();
            Console.ReadKey();
        }
    }
}