java.util Class Hierarchy (Java 2 Platform SE 5.0)

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Hierarchy For Package java.util

Package Hierarchies:: All Packages

Class Hierarchy

java.lang.Object
- java.util.AbstractCollection<E> (implements java.util.Collection<E>)
  - java.util.AbstractList<E> (implements java.util.List<E>)
    - java.util.AbstractSequentialList<E>
      - java.util.LinkedList<E> (implements java.lang.Cloneable, java.util.List<E>, java.util.Queue<E>, java.io.Serializable)
    - java.util.ArrayList<E> (implements java.lang.Cloneable, java.util.List<E>, java.util.RandomAccess, java.io.Serializable)
    - java.util.Vector<E> (implements java.lang.Cloneable, java.util.List<E>, java.util.RandomAccess, java.io.Serializable)
      - java.util.Stack<E>
  - java.util.AbstractQueue<E> (implements java.util.Queue<E>)
    - java.util.PriorityQueue<E> (implements java.io.Serializable)
  - java.util.AbstractSet<E> (implements java.util.Set<E>)
    - java.util.EnumSet<E> (implements java.lang.Cloneable, java.io.Serializable)
    - java.util.HashSet<E> (implements java.lang.Cloneable, java.io.Serializable, java.util.Set<E>)
      - java.util.LinkedHashSet<E> (implements java.lang.Cloneable, java.io.Serializable, java.util.Set<E>)
    - java.util.TreeSet<E> (implements java.lang.Cloneable, java.io.Serializable, java.util.SortedSet<E>)
- java.util.AbstractMap<K,V> (implements java.util.Map<K,V>)
  - java.util.EnumMap<K,V> (implements java.lang.Cloneable, java.io.Serializable)
  - java.util.HashMap<K,V> (implements java.lang.Cloneable, java.util.Map<K,V>, java.io.Serializable)
    - java.util.LinkedHashMap<K,V> (implements java.util.Map<K,V>)
  - java.util.IdentityHashMap<K,V> (implements java.lang.Cloneable, java.util.Map<K,V>, java.io.Serializable)
  - java.util.TreeMap<K,V> (implements java.lang.Cloneable, java.io.Serializable, java.util.SortedMap<K,V>)
  - java.util.WeakHashMap<K,V> (implements java.util.Map<K,V>)
- java.util.Arrays
- java.util.BitSet (implements java.lang.Cloneable, java.io.Serializable)
- java.util.Calendar (implements java.lang.Cloneable, java.lang.Comparable<T>, java.io.Serializable)
  - java.util.GregorianCalendar
- java.util.Collections
- java.util.Currency (implements java.io.Serializable)
- java.util.Date (implements java.lang.Cloneable, java.lang.Comparable<T>, java.io.Serializable)
- java.util.Dictionary<K,V>
  - java.util.Hashtable<K,V> (implements java.lang.Cloneable, java.util.Map<K,V>, java.io.Serializable)
    - java.util.Properties
- java.util.EventListenerProxy (implements java.util.EventListener)
- java.util.EventObject (implements java.io.Serializable)
- java.util.FormattableFlags
- java.util.Formatter (implements java.io.Closeable, java.io.Flushable)
- java.util.Locale (implements java.lang.Cloneable, java.io.Serializable)
- java.util.Observable
- java.security.Permission (implements java.security.Guard, java.io.Serializable)
  - java.security.BasicPermission (implements java.io.Serializable)
    - java.util.PropertyPermission
- java.util.Random (implements java.io.Serializable)
- java.util.ResourceBundle
  - java.util.ListResourceBundle
  - java.util.PropertyResourceBundle
- java.util.Scanner (implements java.util.Iterator<E>)
- java.util.StringTokenizer (implements java.util.Enumeration<E>)
- java.lang.Throwable (implements java.io.Serializable)
  - java.lang.Exception
    - java.io.IOException
      - java.util.InvalidPropertiesFormatException
    - java.lang.RuntimeException
      - java.util.ConcurrentModificationException
      - java.util.EmptyStackException
      - java.lang.IllegalArgumentException
        
        java.util.IllegalFormatException
        
        java.util.DuplicateFormatFlagsException
        java.util.FormatFlagsConversionMismatchException
        java.util.IllegalFormatCodePointException
        java.util.IllegalFormatConversionException
        java.util.IllegalFormatFlagsException
        java.util.IllegalFormatPrecisionException
        java.util.IllegalFormatWidthException
        java.util.MissingFormatArgumentException
        java.util.MissingFormatWidthException
        java.util.UnknownFormatConversionException
        java.util.UnknownFormatFlagsException
      - java.lang.IllegalStateException
        
        java.util.FormatterClosedException
      - java.util.MissingResourceException
      - java.util.NoSuchElementException
        
        java.util.InputMismatchException
    - java.util.TooManyListenersException
- java.util.Timer
- java.util.TimerTask (implements java.lang.Runnable)
- java.util.TimeZone (implements java.lang.Cloneable, java.io.Serializable)
  - java.util.SimpleTimeZone
- java.util.UUID (implements java.lang.Comparable<T>, java.io.Serializable)

Interface Hierarchy

java.util.Comparator<T>
java.util.Enumeration<E>
java.util.EventListener
java.util.Formattable
java.lang.Iterable<T>
- java.util.Collection<E>
  - java.util.List<E>
  - java.util.Queue<E>
  - java.util.Set<E>
    - java.util.SortedSet<E>
java.util.Iterator<E>
- java.util.ListIterator<E>
java.util.Map<K,V>
- java.util.SortedMap<K,V>
java.util.Map.Entry<K,V>
java.util.Observer
java.util.RandomAccess

Enum Hierarchy

java.lang.Object
- java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)
  - java.util.Formatter.BigDecimalLayoutForm

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

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