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The use of various access modifiers

class MyClass {   public             string publicStringField;   protected internal string protectedInternalStringField;   internal           string internalStringField;   protected          int protectedField = 150;   private            int privateField;   public void setPrivateField(int privateField)   {     this.privateField = privateField;   }   public int getPrivateField()   {     return privateField;   }   public void Start()   {     System.Console.WriteLine("Starting MyClass ...");     privateMethod();     System.Console.WriteLine("MyClass started");   }   private void privateMethod()   {     System.Console.WriteLine("Turning starter motor ...");   } } class MainClass {   public static void Main()   {     MyClass myMyClass = new MyClass();     myMyClass.publicStringField = "Toyota";     myMyClass.protectedInternalStringField = "MR2";     myMyClass.internalStringField = "black";     myMyClass.setPrivateField(1995);     System.Console.WriteLine("myMyClass.publicStringField = " + myMyClass.publicStringField);     System.Console.WriteLine("myMyClass.protectedInternalStringField = " + myMyClass.protectedInternalStringField);     System.Console.WriteLine("myMyClass.internalStringField = " + myMyClass.internalStringField);     System.Console.WriteLine("myMyClass.getPrivateField() = " + myMyClass.getPrivateField());     myMyClass.Start();   } } myMyClass.publicStringField = Toyota myMyClass.protectedInternalStringField = MR2 myMyClass.internalStringField = black myMyClass.getPrivateField() = 1995 Starting MyClass ... Turning starter motor ... MyClass started