Answer Posted / radhika

using base keyword we can pass parameters to the baseclass.
When an instance of the DerivedClass is created.The default
constructor in BaseClass is first invoked followed by the
DerivedClass . However, you
can choose which constructor you want to invoke in
BaseClass by using the base keyword in the
default constructor in DerivedClass , like this:

public class BaseClass
{
//---default constructor---
public BaseClass()
{
Console.WriteLine(“Default constructor in BaseClass”);
}
//---parameterized constructor---
public BaseClass(int x)
{
Console.WriteLine(“Parameterized Constructor in BaseClass”);
}
}

public class DerivedClass : BaseClass
{
//---default constructor---
public DerivedClass(): base(4)
{
Console.WriteLine(“Constructor in DerivedClass”);
}
}

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