Question

I’m stuck. Coming from C++ I thought this would simply work, but it does not. Can you please give me an advice? I will try to not end up with kind of creation method in each class used for T.

public class A<T>{

    private T t_;

    public A(){
        t_ = new T(); //error
    }

}  

Also i don’t want to have constructor looking like: A(Class classT){ …
Ideally i would like to have something like this c++ code.

template<class T>
class A{
private:
   T t_;

public:
   A(){}

};

Thanks for help.

Answer 1

You cannot do such things in Java. Read about type erasure: http://docs.oracle.com/javase/tutorial/java/generics/erasure.html