**Inheritance:**
java.lang.Object, java.lang.Throwable, java.lang.Exception, java.lang.RuntimeException, [com.aspose.zip.exceptions.Exception](../../com.aspose.zip.exceptions/exception), [com.aspose.zip.exceptions.SystemException](../../com.aspose.zip.exceptions/systemexception)
```
public class FormatException extends SystemException
```

The exception that is thrown when the format of an argument is invalid, or when a composite format string is not well formed.