The optional file is a text format file used to define generator options in a file instead of on the command line. The optional file is specified in a command line of the java2cob command.
For example, specifying the many method names, etc. in the command line every time is troublesome during the specification of the constructor/method/field. It can be more readily and accurately accomplished by creating the optional file. (see "When the optional file is specified")
Create an optional file with the following code system.
ANSI
UTF8(*)
UTF16(LE)(*)
*: Specify BOM (Byte Order Mark) for the head of an optional file.