java 泛型 实例化,在java中实例化泛型类型

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{

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 A{

private:

T t_;

public:

A(){}

};

Thanks for help.

解决方案