02_Java基础类型和包装类型
| 基本数据类型 | 包装类名称 | 所占字节数 | 默认值 |
|---|---|---|---|
| byte | Byte | 1 | 0 |
| short | Short | 2 | 0 |
| Int | Integer | 4 | 0 |
| long | Long | 8 | 0L |
| double | Double | 8 | 0.0d |
| float | Float | 4 | 0.0f |
| char | Character | 2 | ‘\u0000’ |
| boolean | Boolean | 1 | false |
| 基本数据类型 | 包装类名称 | 所占字节数 | 默认值 |
|---|---|---|---|
| byte | Byte | 1 | 0 |
| short | Short | 2 | 0 |
| Int | Integer | 4 | 0 |
| long | Long | 8 | 0L |
| double | Double | 8 | 0.0d |
| float | Float | 4 | 0.0f |
| char | Character | 2 | ‘\u0000’ |
| boolean | Boolean | 1 | false |
