Exploring Polymorphism and Inherited Classes - CSharp Custom Type

CSharp examples for Custom Type:Polymorphism

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Description

Exploring Polymorphism and Inherited Classes

Demo Code

using System;/*from   w  w  w .j a  v a2  s . com*/
class Person
{
    protected string firstName;
    protected string lastName;
    public Person()
    {
    }
    public Person(string fn, string ln)
    {
        firstName = fn;
        lastName = ln;
    }
    public void displayFullName()
    {
        Console.WriteLine("{0} {1}", firstName, lastName);
    }
}
class Employee : Person
{
    public ushort hireYear;
    public Employee() : base()
    {
    }
    public Employee(string fn, string ln) : base(fn, ln)
    {
    }
    public Employee(string fn, string ln, ushort hy) : base(fn, ln)
    {
        hireYear = hy;
    }
    public new void displayFullName()
    {
        Console.WriteLine("Employee: {0} {1}", firstName, lastName);
    }
}
class NameApp
{
    public static void Main()
    {
        Employee me = new Employee("B", "J", 1983);
        Person Brad = me;
        me.displayFullName();
        Console.WriteLine("Year hired: {0}", me.hireYear);
        Brad.displayFullName();
    }
}

Result


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