JAVA開発メモ - Collectionsimport java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.List; public class CollectionsSample { public static void main(String[] args) { List list = new ArrayList(); Collection collection = list; list.add(new Integer(5)); list.add(new Integer(2)); list.add(new Integer(6)); list.add(new Integer(1)); list.add(new Integer(4)); list.add(new Integer(3)); C
