| Name | Description | Type | Package | Framework |
| Formatter | An interpreter for printf-style format strings. | Class | java.util | Java SE |
| FormatterClosedException | Unchecked exception thrown when the formatter has been closed. | Class | java.util | Java SE |
| Formatter .BigDecimalLayoutForm | Format the BigDecimal as a decimal number. | Class | java.util.Formatter | Java SE |