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floats and doubles

ed suttner
Greenhorn

Joined: Mar 04, 2003
Posts: 13
On page 12 it states that 2546789.343 is a double. Also on question 9, p 48, the answer states that B 3.14 is a float as well. How can you tell it is a double and not a float? I guess my question is how can you tell if a number is a float or a double by just looking at it. Thanks. ed
Thomas Paul
mister krabs
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Joined: May 05, 2000
Posts: 13974
If the number has a decimal point (3.14) or uses scientific notation (5e6) then it is a floating point number.
If it has an f or F at the end (3.14f) then it is a float. otherwise it is a double. 3.14 is a double, not a float.


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Francis Siu
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Joined: Jan 04, 2003
Posts: 867
hi ed suttner
How can you tell it is a double and not a float?
If you have time, I prefer to use the method that using the compiler to test the programme. Because we may be confused by the content of book which may be wrong.


Francis Siu
SCJP, MCDBA
 
I agree. Here's the link: http://aspose.com/file-tools
 
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