why override is required in c#??

raj rai

my question is quite stupid , but plz answer it.

when we inherit a base class then auto matically we can override all its function . all functions in the derived class , having same name as in base r taken as with keyword new

so i m basically confused then what is the differnce between new n override n y we need override at all bcoz we can override all base class function without keyword override

plz if u know some pdf r doc r link abt this plz provide that

i m jst a beginner

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Jude Landry20y ago
Do you know of a document or web page on good class design and inheritence? Thanx n advance!
Stan Gershengoren20y ago
Override removes base class method definition, while new just hides it, that means u can access it later. Consider this example

class base
{
public void f()
{
Console.WriteLine ("base");
}
}

class derived : base
{
public new void f()
{
Console.WriteLine ("derived");
}
}

now execute this code somewhere in the Main method

base d = new derived();
d.f();

in case of new "base" will be printed because the compiler will go by reference and not by instance
if you execute the same code but override the function instead you will see "derived" printed out, because base method no longer exists.

Hope that helps.