How to pass an ArrayList to a varargs method parameter?
Source article: Passing a list as an argument to a vararg method
Use the toArray(T[] arr) method.
.getMap(locations.toArray(new WorldLocation[0]))Here's a complete example:
public static void method(String... strs) { for (String s : strs) System.out.println(s);}... List<String> strs = new ArrayList<String>(); strs.add("hello"); strs.add("world"); method(strs.toArray(new String[0])); // ^^^^^^^^^^^^^^^^^^^^^^^^^^^...
In Java 8:
List<WorldLocation> locations = new ArrayList<>();.getMap(locations.stream().toArray(WorldLocation[]::new));
A shorter version of the accepted answer using Guava:
.getMap(Iterables.toArray(locations, WorldLocation.class));can be shortened further by statically importing toArray:
import static com.google.common.collect.toArray;// ... .getMap(toArray(locations, WorldLocation.class));