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Float Sum Issue

 
Greenhorn
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Hi Guys,
Does anybody knows why output of below code is displaying "100.000001"

System.out.println((20.60f+45.19f+29.45f+4.76f));



Thanks in advance.

Shailendra
 
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You can find the answer in What Every Computer Scientist Should Know About Floating-Point Arithmetic.

And welcome to the Ranch!
 
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Short Answer ... Rounding Error.

For a longer explanation, see item 20 of the beginners FAQ ... https://coderanch.com/how-to/java/JavaBeginnersFaq

Henry
 
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Welcome again

There are a few places where you have to use floats, but if you want floating‑point arithmetic, use doubles. If you can't cope with imprecision use BigDecimal (as described in this thread) or some other decimal arithmetic class.
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