using System; public class MyClass { private string courseName; public MyClass( string name ) { CourseName = name; } public string CourseName { get { return courseName; } set { courseName = value; } } public void DisplayMessage() { Console.WriteLine( CourseName ); } } public class MyClassTest { public static void Main( string[] args ) { MyClass gradeBook1 = new MyClass("C#" ); MyClass gradeBook2 = new MyClass("Data Structures" ); Console.WriteLine( "gradeBook1 course name is: {0}",gradeBook1.CourseName ); Console.WriteLine( "gradeBook2 course name is: {0}",gradeBook2.CourseName ); } }