I am a bit confused that a long type takes 8 byte of space and float type takes 4 byte then how it is possible to type cast a long type into float first..
as i know that if i have two method like-
void show(float f)
void show(double d)
and if i try to call show() method by passing a long type value then it look for exact match if not found then it implicit type cast into float and give the result as float value...
please explain it......i am confused..........
Stephan van Hulst
posted 3 years ago
A numeric primitive type is wider than another not if it can store more information, but if its range is bigger than the other type's range.
long has values up to 2^63 -1
float has values up to about: 3.4 * 10^38
Float is about 74,000,000 trillion times wider than long is. It's just not really good at representing values exactly.
The mind is a strange and wonderful thing. I'm not sure that it will ever be able to figure itself out, everything else, maybe. From the atom to the universe, everything, except itself.