Question

In Java programming language widen and boxing doesn’t work, but how does it work in following example?

final short myshort = 10;
Integer iRef5 = myshort; 

Why does this work? Is this not the same as widen and then box?

But if I write the following code:

final int myint = 10;
Long myLONG = myint;

why it doesn’t work?

Answer 1

With java 7 both the examples are not working. you will get below exception:

Type mismatch: cannot convert from short to Integer
Type mismatch: cannot convert from int to Long

Because the problem is not because of boxing but because of conversion.