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## java.text
Class StringCharacterIterator

    java.lang.Object
      java.text.StringCharacterIterator

All Implemented Interfaces:
  Cloneable, CharacterIterator

    public final class StringCharacterIterator

extends Object
implements CharacterIterator

`StringCharacterIterator` implements the `CharacterIterater` protocol for a `String`. The `StringCharacterIterator` class iterates over the entire `String`.

See Also:
  `CharacterIterator`

Field Summary

Fields inherited from interface java.text.CharacterIterator
`DONE`

Constructor Summary
`StringCharacterIterator(String text)` Constructs an iterator with an initial index of 0.
`StringCharacterIterator(String text, int pos)` Constructs an iterator with the specified initial index.
`StringCharacterIterator(String text, int begin, int end, int pos)` Constructs an iterator over the given range of the given string, with the index set at the specified position.

Method Summary
`Object` | `clone()` Creates a copy of this iterator.
`char` | `current()` Implements CharacterIterator.current() for String.
`boolean` | `equals(Object obj)` Compares the equality of two StringCharacterIterator objects.
`char` | `first()` Implements CharacterIterator.first() for String.
`int` | `getBeginIndex()` Implements CharacterIterator.getBeginIndex() for String.
`int` | `getEndIndex()` Implements CharacterIterator.getEndIndex() for String.
`int` | `getIndex()` Implements CharacterIterator.getIndex() for String.
`int` | `hashCode()` Computes a hashcode for this iterator.
`char` | `last()` Implements CharacterIterator.last() for String.
`char` | `next()` Implements CharacterIterator.next() for String.
`char` | `previous()` Implements CharacterIterator.previous() for String.
`char` | `setIndex(int p)` Implements CharacterIterator.setIndex() for String.
`void` | `setText(String text)` Reset this iterator to point to a new string.

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### StringCharacterIterator

    public StringCharacterIterator(String text)

  Constructs an iterator with an initial index of 0.

### StringCharacterIterator

    public StringCharacterIterator(String text,
                                   int pos)

  Constructs an iterator with the specified initial index.

  Parameters:
    `text` - The String to be iterated over
    `pos` - Initial iterator position

### StringCharacterIterator

    public StringCharacterIterator(String text,
                                   int begin,
                                   int end,
                                   int pos)

  Constructs an iterator over the given range of the given string, with the index set at the specified position.

  Parameters:
    `text` - The String to be iterated over
    `begin` - Index of the first character
    `end` - Index of the character following the last character
    `pos` - Initial iterator position

Method Detail

### setText

    public void setText(String text)

  Reset this iterator to point to a new string. This package-visible method is used by other java.text classes that want to avoid allocating new StringCharacterIterator objects every time their setText method is called.

  Parameters:
    `text` - The String to be iterated over
  Since:
    1.2

### first

    public char first()

  Implements CharacterIterator.first() for String.

  Specified by:
    `first` in interface `CharacterIterator`
  Returns:
    the first character in the text, or DONE if the text is empty
  See Also:
    `CharacterIterator.first()`

### last

    public char last()

  Implements CharacterIterator.last() for String.

  Specified by:
    `last` in interface `CharacterIterator`
  Returns:
    the last character in the text, or DONE if the text is empty
  See Also:
    `CharacterIterator.last()`

### setIndex

    public char setIndex(int p)

  Implements CharacterIterator.setIndex() for String.

  Specified by:
    `setIndex` in interface `CharacterIterator`
  Parameters:
    `p` - the position within the text. Valid values range from getBeginIndex() to getEndIndex(). An IllegalArgumentException is thrown if an invalid value is supplied.
  Returns:
    the character at the specified position or DONE if the specified position is equal to getEndIndex()
  See Also:
    `CharacterIterator.setIndex(int)`

### current

    public char current()

  Implements CharacterIterator.current() for String.

  Specified by:
    `current` in interface `CharacterIterator`
  Returns:
    the character at the current position or DONE if the current position is off the end of the text.
  See Also:
    `CharacterIterator.current()`

### next

    public char next()

  Implements CharacterIterator.next() for String.

  Specified by:
    `next` in interface `CharacterIterator`
  Returns:
    the character at the new position or DONE if the new position is off the end of the text range.
  See Also:
    `CharacterIterator.next()`

### previous

    public char previous()

  Implements CharacterIterator.previous() for String.

  Specified by:
    `previous` in interface `CharacterIterator`
  Returns:
    the character at the new position or DONE if the current position is equal to getBeginIndex().
  See Also:
    `CharacterIterator.previous()`

### getBeginIndex

    public int getBeginIndex()

  Implements CharacterIterator.getBeginIndex() for String.

  Specified by:
    `getBeginIndex` in interface `CharacterIterator`
  Returns:
    the index at which the text begins.
  See Also:
    `CharacterIterator.getBeginIndex()`

### getEndIndex

    public int getEndIndex()

  Implements CharacterIterator.getEndIndex() for String.

  Specified by:
    `getEndIndex` in interface `CharacterIterator`
  Returns:
    the index after the last character in the text
  See Also:
    `CharacterIterator.getEndIndex()`

### getIndex

    public int getIndex()

  Implements CharacterIterator.getIndex() for String.

  Specified by:
    `getIndex` in interface `CharacterIterator`
  Returns:
    the current index.
  See Also:
    `CharacterIterator.getIndex()`

### equals

    public boolean equals(Object obj)

  Compares the equality of two StringCharacterIterator objects.

  Overrides:
    `equals` in class `Object`
  Parameters:
    `obj` - the StringCharacterIterator object to be compared with.
  Returns:
    true if the given obj is the same as this StringCharacterIterator object; false otherwise.
  See Also:
    `Object.hashCode()`, `Hashtable`

### hashCode

    public int hashCode()

  Computes a hashcode for this iterator.

  Overrides:
    `hashCode` in class `Object`
  Returns:
    A hash code
  See Also:
    `Object.equals(java.lang.Object)`, `Hashtable`

### clone

    public Object clone()

  Creates a copy of this iterator.

  Specified by:
    `clone` in interface `CharacterIterator`
  Overrides:
    `clone` in class `Object`
  Returns:
    A copy of this
  See Also:
    `Cloneable`

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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.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.