java.util

类 AbstractCollection AbstractList AbstractMap AbstractQueue AbstractSequentialList AbstractSet ArrayList Arrays BitSet Calendar Collection Collections Comparator ConcurrentModificationException Currency CurrencyData Date Dictionary DuplicateFormatFlagsException EmptyStackException EnumMap EnumSet Enumeration EventListener EventListenerProxy EventObject FormatFlagsConversionMismatchException Formattable FormattableFlags Formatter FormatterClosedException GregorianCalendar HashMap HashSet Hashtable IdentityHashMap IllegalFormatCodePointException IllegalFormatConversionException IllegalFormatException IllegalFormatFlagsException IllegalFormatPrecisionException IllegalFormatWidthException InputMismatchException InvalidPropertiesFormatException Iterator JumboEnumSet LinkedHashMap LinkedHashSet LinkedList List ListIterator ListResourceBundle Locale Map MissingFormatArgumentException MissingFormatWidthException MissingResourceException NoSuchElementException Observable Observer PriorityQueue Properties PropertyPermission PropertyResourceBundle Queue Random RandomAccess RegularEnumSet ResourceBundle ResourceBundleEnumeration Scanner Set SimpleTimeZone SortedMap SortedSet Stack StringTokenizer TimeZone Timer TimerTask TooManyListenersException TreeMap TreeSet UUID UnknownFormatConversionException UnknownFormatFlagsException Vector WeakHashMap XMLUtils