تمرین ثبت مشخصات فرد و ماشین با استفاده از متود

 public class Information
 {
     
     public string Name { get; init; }
     public string Family { get; init; }
     public int Age { get; init; }
   
 }
 
  public class CarInformation
 {

     
     public string CarName { get; init; }
     public string CarModel { get; init; }
     public int CarSpeed { get; init; }
 }
 
  public class Tools
 {
     // class Methods
     private int _speed;
     public void SetSpeed(int speed)
     {
         if (speed > 120)
         {
             MessageBox.Show("Speed is to high");
             speed = 0;
             
         }
         _speed = speed;


     }
     public int GetSpeed()
     {
         return _speed;
     }

     private int _age;
     public void SetAge(int age)
     {
         if (age < 20 || age > 100)
         {
             MessageBox.Show("Your Age is not valid");
             age = 0;
         }

         _age = age;

     }
     public int GetAge()
     {
         return _age;
     }
     
     \\ Code Behind


 public partial class Form1 : Form
 {
     private int _age;
     private int _speed;

     Tools tools = new Tools();
     public Form1()
     {
         InitializeComponent();
     }
     private void SetNumber()
     {
         try
         {


             if (txtAge.Text != "" )
             {
                 _age = Convert.ToInt32(txtAge.Text);
                
             }
             else
             {
                 MessageBox.Show("Please Complate Age Field");
             }
             if (txtCarSpeed.Text!="")
             {
                 _speed = Convert.ToInt32(txtCarSpeed.Text);
             }
             else
             {
                 MessageBox.Show("Please Complate Speed Field");
             }
         }
         catch (FormatException)
         {
             MessageBox.Show("Please Enter Just Number");
         }
     }

     private void button1_Click(object sender, EventArgs e)
     {

     }

     private void btnEnter_Click(object sender, EventArgs e)
     {
         try
         {
            
            
             SetNumber();
              // Information
             Information information = new Information()
             {
                 Name = txtName.Text,
                 Family = txtFamily.Text,
                 Age = _age

             };
             tools.SetAge(_age);

             MessageBox.Show($"Name = {information.Name} Family = {information.Family} Age = " +
                 $"{tools.GetAge()}");

             //Car information 
             CarInformation car = new CarInformation()
             {

                 CarName = txtCarName.Text,
                 CarModel = txtCarModel.Text,
                 CarSpeed = _speed
             };
             tools.SetSpeed(_speed);
             MessageBox.Show($"Car Name = {car.CarName} Car Model = {car.CarModel}" +
                $" Car Speed = {tools.GetSpeed()}");
         }
         catch (Exception)
         {

             MessageBox.Show("Error");
         }
     } 

سلام استاد عزیز وقتتون بخیر 

استاد این تمرین رو بنده چند بار انجام دادم از روش های مختلفی که گفتید به اتمام سوندم و دوباره با روش های دیگه بازنویسیشون کردم اگر جایی اشتباه تایپی بود عذر میخوام.