Java tutorial
import java.util.ArrayList; import java.util.Arrays; import java.util.HashMap; import java.util.HashSet; import java.util.LinkedList; import java.util.List; import java.util.Map; import java.util.Set; import java.util.TreeMap; import java.util.TreeSet; public class Main { public static void main(String[] argv) throws Exception { List stuff = Arrays.asList(new String[] { "a", "b" }); List list = new ArrayList(stuff); List list2 = new LinkedList(list); Set set = new HashSet(stuff); Set set2 = new TreeSet(set); Map map = new HashMap(); Map map2 = new TreeMap(map); } }