Java™ How To Program (Early Objects), Tenth Edition

Section 7.13 Variable-Length Argument Lists

• An argument type followed by an ellipsis (...; p. 281) in a method’s parameter list indicates that the method receives a variable number of arguments of that particular type. The ellipsis can occur only once in a method’s parameter list. It must be at the end of the parameter list.

• A variable-length argument list (p. 281) is treated as an array within the method body. The number of arguments in the array can be obtained using the array’s length field.