The function of the three points after the incoming parameter parameter type of the Java method.

After the type three dots (String ...), starting with Java 5, the Java language supports a new approach to method parameters, called variable-length argument lists, whose syntax is the type heel ...

Indicates that the parameter accepted here is 0 to multiple objects of type object, or is a object[].

For example, we have a method called Test (string...strings), so you can also write method test (), but you can't write test (string[] strings), which will cause a compile error, and the system prompts for a duplicate.

To be clear: that is, you can pass in multiple parameters ...