Methods can declare a parameter that accepts from zero to many arguments, a so-called var-arg method.
A var-arg parameter is declared with the syntax type... name.
A var-arg method can have only one var-arg parameter.
In methods with normal parameters and a var-arg, the var-arg must come last.
Legal:
void doStuff(int... x) { } // expects from 0 to many ints as parameters
void doStuff2(char c, int... x) { } // expects first a char, then 0 to many ints
void doStuff3(Animal... animal) { } // 0 to many Animals
Illegal:
void doStuff4(int x...) { } // bad syntax
void doStuff5(int... x, char... y) { } // too many var-args
void doStuff6(String... s, byte b) { } // var-arg must be last