Mega Code Archive
Illustrates member hiding
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using System;
public class BaseClass
{
public string lastName;
public string firstName;
public BaseClass(string lastName, string firstName)
{
Console.WriteLine("In BaseClass constructor");
this.lastName = lastName;
this.firstName = firstName;
Console.WriteLine("this.lastName = " + this.lastName);
Console.WriteLine("this.firstName = " + this.firstName);
}
public void DisplayfirstName()
{
Console.WriteLine("In BaseClass DisplayfirstName() method");
Console.WriteLine("firstName = " + firstName);
}
}
public class DerivedClass : BaseClass
{
public new string firstName;
public DerivedClass(string lastName, string firstName) : base(lastName, "Test")
{
Console.WriteLine("In DerivedClass constructor");
this.firstName = firstName;
Console.WriteLine("this.firstName = " + this.firstName);
}
public new void DisplayfirstName()
{
Console.WriteLine("In DerivedClass DisplayfirstName() method");
Console.WriteLine("firstName = " + firstName);
base.DisplayfirstName();
}
}
class MainClass
{
public static void Main()
{
Console.WriteLine("Creating a DerivedClass object");
DerivedClass myDerivedClass = new DerivedClass("A", "B");
Console.WriteLine("Back in Main() method");
Console.WriteLine("myDerivedClass.lastName = " + myDerivedClass.lastName);
Console.WriteLine("myDerivedClass.firstName = " + myDerivedClass.firstName);
Console.WriteLine("Calling myDerivedClass.DisplayfirstName()");
myDerivedClass.DisplayfirstName();
}
}
Creating a DerivedClass object
In BaseClass constructor
this.lastName = A
this.firstName = Test
In DerivedClass constructor
this.firstName = B
Back in Main() method
myDerivedClass.lastName = A
myDerivedClass.firstName = B
Calling myDerivedClass.DisplayfirstName()
In DerivedClass DisplayfirstName() method
firstName = B
In BaseClass DisplayfirstName() method
firstName = Test
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