//Visual Basic 2010 Constructoren - New Object Oriented Programming
public class Teacher : Person {
    private string m_Course;
    public Teacher(string name) {
        base.New(name);
    }
    public Teacher(string name, string course) {
        this.New(name);
        this.Course = course;
    }
    public virtual string Course {
        get {
            Course = this.m_Course;
        }
        set {
            this.m_Course = value;
        }
    }
}
public class Client4 {
    void Main() {
        Teacher teacher1 = new Teacher("John");
        Console.WriteLine(teacher1.Name);
        Console.WriteLine(teacher1.Course);
        Teacher teacher2 = new Teacher("Jane", "Visual Basic");
        Console.WriteLine(teacher2.Name);
        Console.WriteLine(teacher2.Course);
        Console.ReadLine();
    }
}
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