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float和long取值大小比较
2022-07-21 05:21:00 【浔枫】
1.long的取值大小
在java中,long类型的数据占8个字节,即64位
所以long的取值范围为-264 ~ 264-1
即-9223372036854775808到9223372036854775807
2.float的取值大小
在java中,float类型占4个字节,即32位
其中,第一位为符号位,后面8位为阶码,最后面23位为尾数
取值范围为±(2-2-23)2127
即约等于3.41038
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