//Visual Basic 2010 Constructoren - New Object Oriented Programming
public class Student : Person {
    private string m_ClassGroup;
    public Student(string name, string classGroup) {
        base.New(name);
        this.ClassGroup = classGroup;
    }
    public virtual string ClassGroup {
        get {
            ClassGroup = this.m_ClassGroup;
        }
        set {
            this.m_ClassGroup = value;
        }
    }
}
public class Client3 {
    void Main() {
        Student student1 = new Student("John", "Group 1");
        Console.WriteLine(Name);
        Console.WriteLine(ClassGroup);
        Console.ReadLine();
    }
}
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