Specifying a generic type in java from Class object

Question

Why this is wrong:

    Class type = Integer.class;
    ArrayList = new ArrayList<>();

?

I

Answer 1

Feel the difference between java Class (which actually generic too) object and class name.

You should use class name specifying generic type.

ArrayList = new ArrayList<>();
// ArrayList = new ArrayList<>(); <- WRONG

UPD:

Use this approach if you'll know type only in runtime:

public  void createAList(Class type) {
    ArrayList toReturn = new ArrayList<>();
    return toReturn;
}