CareerCup

Insufficient details in the question.

What is the type that function is supposed to return? void *?

How would the caller know what to cast it to, in order to actually use it?

Do you want people to design a COM (Microsoft's solution for this type of a problem) like system?

We need to use class loader to instantiate the class. Class.forName internally uses class loader. Not sure if this helps...

do u mean java reflection?

so you want to create a object of class based on class name.I am ZERO in java.please provides more details.
e.g

class_name* createObj(const string &class_name)
{
return new class_name;
}

this is one way of using it

class Class {
public:
static class* forName (const string* name) {
if (strcmp(*name,"CLASS") {
return new Class;
}
else(strcmp(*name,"DERIVED"){ //in case a derived obj is to be created
return new Derived;
}
}
};

this type of obj creation is mainly needed when we create an obj during run time depending on the user input. hope this helps.

I think its asking us to build objects based on the reflection concept.
We need to use map having Key as class name and value as Object Creator function. Every class will register to that map and in run time objects will be getting created.

i can post the code in c++ also if required.

This is not possible to implement it, since String is purposely immutable in java, just to avoid the manipulation of loading the classes by their name.