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Java 的变量类型:
主类型 | 大小 | 最小值 | 最大值 | 封装器类型 |
boolean | — | — | — | Boolean |
Char | 16-bit | Unicode 0 | Unicode 216- 1 | Character |
byte | 8-bit | -128 | 127 | Byte |
Short | 16-bit | -215 | +215—1 | Short |
Int | 32-bit | -231 | +231—1 | Integer |
Long | 64-bit | -263 | +263—1 | Long |
Float | 32-bit | IEEE754 | IEEE754 | Float |
double | 64-bit | IEEE754 | IEEE754 | Double |
Void | — | — | — | Void |