Strictfp確保您從每個平臺上的浮點計算獲得完全相同的結果。如果不使用strictfp，JVM實現可以在可用的地方使用額外的精度。

Within an FP-strict expression, all

intermediate values must be elements

of the float value set or the double

value set, implying that the results

of all FP-strict expressions must be

those predicted by IEEE 754 arithmetic

on operands represented using single

and double formats. Within an

expression that is not FP-strict, some

leeway is granted for an

implementation to use an extended

exponent range to represent

intermediate results; the net effect,

roughly speaking, is that a

calculation might produce “the correct

answer” in situations where exclusive

use of the float value set or double

value set might result in overflow or

underflow.

換句話說，它是關于確保一次寫入一次運行實際上意味著一次寫的同時獲取錯誤結果無處不在。

使用strictfp你的結果是可移植的，沒有它，他們是更可能是準確的。

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