Does Java autobox when assigning an int to an Object?

Question

Is this autoboxing?

Object ob = 8;

Will the above code first wrap the int literal 8 in an Integer and then assign its reference to variable

Answer 1

This specific case is detailed in the assignment conversions:

Assignment conversion occurs when the value of an expression is assigned (§15.26) to a variable: the type of the expression must be converted to the type of the variable.
Assignment contexts allow the use of one of the following:

• [...]
• a boxing conversion optionally followed by a widening reference conversion

So in your case:

8 (int) === boxing ===> 8 (Integer) ==== reference widening ===> 8 (Object)