ArrayList: toArray()
import java.util.ArrayList; public class Main { public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); arrayList.add("1"); arrayList.add("2"); arrayList.add("3"); arrayList.add("4"); arrayList.add("5"); Object[] objArray = arrayList.toArray(); for (Object obj : objArray) System.out.println(obj); } }