boxing « primitive « Java Data Type Q&A

1. Creating (boxed) primitive instance when the class is known    stackoverflow.com

I need a method that returns an instance of the supplied class type. Let's assume that the supplied types are limited to such that an "empty" instance of them can be ...

2. Javac and Primitives: Boxed vs. Unboxed    stackoverflow.com

My question is: why do primitive types have to be wrapped in an object, when it is also a possibility to have the compiler set things right for you?

1. calls to a ...

3. Widening and Boxing Java primitives    stackoverflow.com

Widening and Boxing Java primitives. I know it is not possible to widen a wrapper class from one to another as they are not from the same inheritence tree. Why though ...