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widening conversion problem(Ref RHE)

 
Greenhorn
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Hi,
According to widening conversion rule RHE says that we can convert long to float but not vice versa...
I think widening does not refer to the size of the data type...
as long occupies (64 bits) where as float occuies only 32 bits..
then, what this widening refers to ?
 
Ranch Hand
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Hi srinivas D,
When you go from a float to a long you lose precision since a long cannot represent the decimal value of a float. (see JLS § 5.1.2)
You can force a float to a long using an explicit cast

Hope that helps.
 
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