Java: Passing a list as argument to a vararg method

The parameter type String... is equivalent to String[] so just use the List.toArray(T[] arr) method to convert the list to an array. For example:

varargMethod(strList.toArray(new String[strList.size()]));

where strList is of type List<String> would correctly invoke the following method

void varargMethod(String... strs) {

strs.toArray(new String[0]) also works, but you would unnecessarily allocate a zero length array that is immediately thrown away.


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