文章作者 100test 发表时间 2007:03:10 18:46:29
来源 100Test.Com百考试题网
Table 3-1. Java Integer Types | ||
Type |
Storage Requirement |
Range (Inclusive) |
Int |
4 bytes |
–2,147,483,648 to 2,147,483, 647 (just over 2 billion) |
Short |
2 bytes |
–32,768 to 32,767 |
Long |
8 bytes |
–9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 |
Byte |
1 byte |
–128 to 127 |
Table 3-2. Floating-Point Types | ||
Type |
Storage Requirement |
Range |
float |
4 bytes |
approximately ±3.40282347E 38F (6–7 significant decimal digits) |
double |
8 bytes |
approximately ±1.79769313486231570E 308 (15 significant decimal digits) |