opt (String)

Identification string of the Option.

longOpt (String)

Alias and more descriptive identification string.

description (String)

Description of the function of the option.

required (boolean)

Flag to check whether the option must appear on the command line.

arg (boolean)

Flag to check whether the option takes an argument.

args (boolean)

Flag to check whether the option takes more than one argument.

optionalArg (boolean)

Flag to check whether the option’s argument is optional.

argName (String)

Name of the argument value for the usage statement.

valueSeparator (char)

The character value used to split the argument string.

type (Object)

Argument type.

value (String)

Option value.

values (String[])

Values of the option.