However, all elements are initially set to null, or to zero if it is an array of primitive types ... So to get the size of an ArrayList, you call its size method. However, an Arraylist is not the same ...

Part 1 reveals the covariant and contravariant relationships between simpler elements such as array types and generic types, as well as the special Java language ... nor can a primitive and ...

Primitive types represent the ... a set of int values they want to store in an ArrayList, it can’t be done. Unless, of course, they use a corresponding wrapper class or take advantage the autoboxing ...