using System;
public class Employee {
private int fAge;
public Employee() {
fAge = 21;
}
public virtual void setAge(int age) {
fAge = age;
}
public virtual int getAge() {
return fAge;
}
}
public class AdultEmployee : Employee {
public AdultEmployee() {
}
override public void setAge(int age) {
if (age > 21)
base.setAge(age);
}
}
class MainClass {
public static void Main() {
Employee p = new Employee();
p.setAge(18);
AdultEmployee ap = new AdultEmployee();
ap.setAge(18);
Console.WriteLine("Employee Age: {0}", p.getAge());
Console.WriteLine("AdultEmployee Age: {0}", ap.getAge());
}
}