object of base class call base method or drived method both have same name.....

It depends on if it is virtual or not. With this level of understanding (and very bad writing; this is simply impolite) you're not ready to ask questions here. First, read on OOP (http://en.wikipedia.org/wiki/Object-oriented_programming[^]), learn C++ and/or C# by manuals and exercises.

If you did, it would not be possible that you asked such questions.

Also, here are some learning guidance for your information: I have a problem with my program. Please help![^], locate and read my answer.

—SA

we have a class abc which has method add().......
inherit it class xyz have same method add()...
so if we make a object of base class then this object call whic method...
base or drived class method

No one will answer that. It's simple. Will take hardly 5 minutes. Just try, do it and check it. Please don't expect a complete spoon-feed! :doh:

If you're using C#:
Calling xyz.Add() where xyz:abc will call the Add() method of xyz class. xyz.Add() should be marked new or override depending on how abc.Add() is declared (virtual, abstract or none of them). In the method body you can call abc.Add() with base.Add().

class ABC
{
Public void Add()
{
Console.Write("Base");
}

}
class XYZ:ABC
{
Public void Add()
{
Console.Write("Derived");
}

}

class Program
{
static void Main(string[]args)
{
ABC obj=new ABC();
obj.Add();

}
}

Answer:Base