I'm working in Java and the typical way you specify multiple args for a method is:
public static void someMethod(String[] args)
But, I've seen another way a few times, even in the standard Java library. I don't know how to refer to this in conversation, and googling is not of much help due to the characters being used.
public static void someMethod(Object... args)
I know this allows you to string a bunch or arguments into a method without knowing ahead of time exactly how many there might be, such as:
someMethod(String arg1, String arg2, String arg3, ... etc
How do you refer to this type of method signature setup? I think it's great and convenient and want to explain it to some others, but am at a lack of how to refer to this. Thank you.
This way to express arguments is called varargs, and was introduced in Java 5.
You can read more about them here.
The Parameter method(Object... args) is called
varargs
. Try this link.As a Keppil and Steve Benett pointed out that this java feature is called varargs.
If I'm not mistaken, Joshua Bloch mentioned that there is a performance hit for using varargs and recommends telescoping and using the varargs method as a catch all sink.