Yesterday I read a very interesting statement:
"A class is a pointer to an object"
I think this definition really describes the relationship between classes and objects quite well for some languages. The language in question was Delphi. In Delphi, just like Java, C# and Visual Basic .NET, a class type would be referred to as a reference type. What does this mean? A variable of this type is a reference to an object, not the object itself. Or in other words, a class is a pointer to an object. If we could define an object, a class would just be a pointer to that type i.e.
PersonObj = object
...
end;
Person = ^object;
Thursday, February 09, 2006
Definition of the week
Posted by Andrew Cain at 1:25 pm
Subscribe to:
Post Comments (Atom)
1 comment:
Ok there is also an object type in Delphi, so this is actually possible. You define an object using the object type. A variable of this type is the object, I assume stack based.
Post a Comment