Object/Instance/Variable/Method

Question

I wish to whether my understanding is correct.

Problem pro = new Problem();

"pro" can be an object, instance or variable, in delegates it can be referred to method as well. That means "pro" can take several roles depending on the situation.

Vulpes · Answer

Well 'pro' is a variable of type Problem. If Problem is a reference type then 'pro' contains a reference to where a new object (or instance) of type Problem has been created on the heap. However if Problem is a value type then 'pro' contains an actual instance of that type not a reference to it. As you say it is also possible for variables to refer to delegate instances and there is special syntax for adding compatible methods to or removing them from the invocation list of that delegate instance. All the methods can then be invoked one after the other by invoking the delegate.

Maha · Answer

Thank you for your explanation.