31
Mar
Mar
double a=4.35;
System.out.println(100*a);
answer is 434.99999999999994
Why is not be 435.00 ?
Answer:
This is a FAQ on Programming & Design…
to make the computer go faster, double and floats are calculated as a binary number with an exponent. Use BigDecimal number type to regain your familiar base-10 arithmatic. If you software program deals with money, use integer math for the dollars and interger math for the cents.
I consider float and double as math numbers for measurements, not for units.
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on Monday, March 31st, 2008 at 4:42 am and is filed under Programming.
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