| 1. | A statement group with optional exception support 带有可选的异常支持的语句组 |
| 2. | A statement group with optional synchronization support 带有可选的同步支持的语句组 |
| 3. | Determines which statement group the given statement should belong to 确定给定的语句应属于的语句组。 |
| 4. | Blocks a statement group ; blocks may be labeled for use by continue or iterate 语句组;块可以有标签,供继续或循环利用 |
| 5. | For statement group 语句组实现的。 |