java中显示float的最大值,Java float中的最大值可以以两位数的精度（2位精度）存储？...

转载于 2021-02-26 09:05:58 发布 · 213 阅读

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博客探讨在Java里如何查找float能存储的最大两位小数精度值。提到32位float中24位用于存数，2^24是能准确存储的最大整数，最大无精度损失的两位小数是2^24/100，还指出0.1和0.01不能精确存储等内容。

How I could find max two decimal precision vale that can be stored in float ?

From my understanding, In 32 bit float we have 24(23+1) for storing the number excluding exponent. is 2^24 is the max value we could store ?

Thanks in advance.

Sriraman

解决方案

2^24 is the largest integer you can store accurately. The largest two decimal places value you can store without loss of precision. 2^24/100.

Note: even 0.1 & 0.01 cannot be stored accurately but with rounding you can get this value without error. So taking the question literally, the largest value is 0.00. ;)

The largest value with two digits of precision is close to Float.MAX_VALUE, but I don't think that is what you mean.