What is it called when you use object… as a parame

问题:

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Java, 3 dots in parameters (11 answers)

Closed 3 years ago.

I have noticed in Java that you can have a function with object... as a parameter and then method will take any number of objects as a parameter and treat it as an array. What is this called? I have been trying to search for it but it seems ... is ignored by search engines. I seem to remember printf in C does the same thing.

Thanks.

回答1:

It's called varargs

回答2:

Wikipedia says this is called a variadic function.

回答3:

It's called varargs

回答4:

It's called varargs.

It means is function is accepting variable number of arguments. In C/CPP there is a header file stdarg.h which have declaration of methods for handling variable arguments.