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Wrappers

Chetan Dodiya
Ranch Hand

Joined: Jun 27, 2008
Posts: 39
this q is from ExamLab



OUTPUT IS
AGAADGBDAF

why in this program wrapper Byte is widen to Number
because Wrapper type cant widen...
so why this program works fine???


SCJP 1.5
Markus Klein
Greenhorn

Joined: Aug 29, 2008
Posts: 19
Widening of reference variable depends on inheritance(so, Integer cannot be widened to Long. But, Integer widened to Number)
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Wrappers
 
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