BreakIterator

java.lang.Object
- ohos.global.icu.text.BreakIterator

所有已实现的接口:

Cloneable
```
public abstract class BreakIterator
extends Object
implements Cloneable
```
[icu enhancement] ICU's replacement for BreakIterator. Methods, fields, and other functionality specific to ICU are labeled '[icu]'.
A class that locates boundaries in text. This class defines a protocol for objects that break up a piece of natural-language text according to a set of criteria. Instances or subclasses of BreakIterator can be provided, for example, to break a piece of text into words, sentences, or logical characters according to the conventions of some language or group of languages. We provide five built-in types of BreakIterator:
- getTitleInstance() returns a BreakIterator that locates boundaries between title breaks.
- getSentenceInstance() returns a BreakIterator that locates boundaries between sentences. This is useful for triple-click selection, for example.
- getWordInstance() returns a BreakIterator that locates boundaries between words. This is useful for double-click selection or "find whole words" searches. This type of BreakIterator makes sure there is a boundary position at the beginning and end of each legal word. (Numbers count as words, too.) Whitespace and punctuation are kept separate from real words.
- getLineInstance() returns a BreakIterator that locates positions where it is legal for a text editor to wrap lines. This is similar to word breaking, but not the same: punctuation and whitespace are generally kept with words (you don't want a line to start with whitespace, for example), and some special characters can force a position to be considered a line-break position or prevent a position from being a line-break position.
- getCharacterInstance() returns a BreakIterator that locates boundaries between logical characters. Because of the structure of the Unicode encoding, a logical character may be stored internally as more than one Unicode code point. (A with an umlaut may be stored as an a followed by a separate combining umlaut character, for example, but the user still thinks of it as one character.) This iterator allows various processes (especially text editors) to treat as characters the units of text that a user would think of as characters, rather than the units of text that the computer sees as "characters".
The text boundary positions are found according to the rules described in Unicode Standard Annex #29, Text Boundaries, and Unicode Standard Annex #14, Line Breaking Properties. These are available at http://www.unicode.org/reports/tr14/ and http://www.unicode.org/reports/tr29/.
BreakIterator's interface follows an "iterator" model (hence the name), meaning it has a concept of a "current position" and methods like first(), last(), next(), and previous() that update the current position. All BreakIterators uphold the following invariants:
- The beginning and end of the text are always treated as boundary positions.
- The current position of the iterator is always a boundary position (random- access methods move the iterator to the nearest boundary position before or after the specified position, not _to_ the specified position).
- DONE is used as a flag to indicate when iteration has stopped. DONE is only returned when the current position is the end of the text and the user calls next(), or when the current position is the beginning of the text and the user calls previous().
- Break positions are numbered by the positions of the characters that follow them. Thus, under normal circumstances, the position before the first character is 0, the position after the first character is 1, and the position after the last character is 1 plus the length of the string.
- The client can change the position of an iterator, or the text it analyzes, at will, but cannot change the behavior. If the user wants different behavior, he must instantiate a new iterator.
BreakIterator accesses the text it analyzes through a CharacterIterator, which makes it possible to use BreakIterator to analyze text in any text-storage vehicle that provides a CharacterIterator interface. Note: Some types of BreakIterator can take a long time to create, and instances of BreakIterator are not currently cached by the system. For optimal performance, keep instances of BreakIterator around as long as makes sense. For example, when word-wrapping a document, don't create and destroy a new BreakIterator for each line. Create one break iterator for the whole document (or whatever stretch of text you're wrapping) and use it to do the whole job of wrapping the text.
Examples:
Creating and using text boundaries
```
 public static void main(String args[]) {
      if (args.length == 1) {
          String stringToExamine = args[0];
          //print each word in order
          BreakIterator boundary = BreakIterator.getWordInstance();
          boundary.setText(stringToExamine);
          printEachForward(boundary, stringToExamine);
          //print each sentence in reverse order
          boundary = BreakIterator.getSentenceInstance(Locale.US);
          boundary.setText(stringToExamine);
          printEachBackward(boundary, stringToExamine);
          printFirst(boundary, stringToExamine);
          printLast(boundary, stringToExamine);
      }
 }
 
```
Print each element in order
```
 public static void printEachForward(BreakIterator boundary, String source) {
     int start = boundary.first();
     for (int end = boundary.next();
          end != BreakIterator.DONE;
          start = end, end = boundary.next()) {
          System.out.println(source.substring(start,end));
     }
 }
 
```
Print each element in reverse order
```
 public static void printEachBackward(BreakIterator boundary, String source) {
     int end = boundary.last();
     for (int start = boundary.previous();
          start != BreakIterator.DONE;
          end = start, start = boundary.previous()) {
         System.out.println(source.substring(start,end));
     }
 }
 
```
Print first element
```
 public static void printFirst(BreakIterator boundary, String source) {
     int start = boundary.first();
     int end = boundary.next();
     System.out.println(source.substring(start,end));
 }
 
```
Print last element
```
 public static void printLast(BreakIterator boundary, String source) {
     int end = boundary.last();
     int start = boundary.previous();
     System.out.println(source.substring(start,end));
 }
 
```
Print the element at a specified position
```
 public static void printAt(BreakIterator boundary, int pos, String source) {
     int end = boundary.following(pos);
     int start = boundary.previous();
     System.out.println(source.substring(start,end));
 }
 
```
Find the next word
```
 public static int nextWordStartAfter(int pos, String text) {
     BreakIterator wb = BreakIterator.getWordInstance();
     wb.setText(text);
     int wordStart = wb.following(pos);
     for (;;) {
         int wordLimit = wb.next();
         if (wordLimit == BreakIterator.DONE) {
             return BreakIterator.DONE;
         }
         int wordStatus = wb.getRuleStatus();
         if (wordStatus != BreakIterator.WORD_NONE) {
             return wordStart;
         }
         wordStart = wordLimit;
      }
 }
 
```
The iterator returned by getWordInstance() is unique in that the break positions it returns don't represent both the start and end of the thing being iterated over. That is, a sentence-break iterator returns breaks that each represent the end of one sentence and the beginning of the next. With the word-break iterator, the characters between two boundaries might be a word, or they might be the punctuation or whitespace between two words. The above code uses getRuleStatus() to identify and ignore boundaries associated with punctuation or other non-word characters.
另请参阅:

CharacterIterator

字段概要

字段
限定符和类型	字段	说明
`static int`	`DONE`	DONE is returned by previous() and next() after all valid boundaries have been returned.
`static int`	`KIND_CHARACTER`	[icu]
`static int`	`KIND_LINE`	[icu]
`static int`	`KIND_SENTENCE`	[icu]
`static int`	`KIND_TITLE`	已过时。 ICU 64 Use `getWordInstance()` instead.
`static int`	`KIND_WORD`	[icu]
`static int`	`WORD_IDEO`	Tag value for words containing ideographic characters, lower limit
`static int`	`WORD_IDEO_LIMIT`	Tag value for words containing ideographic characters, upper limit
`static int`	`WORD_KANA`	Tag value for words containing kana characters, lower limit
`static int`	`WORD_KANA_LIMIT`	Tag value for words containing kana characters, upper limit
`static int`	`WORD_LETTER`	Tag value for words that contain letters, excluding hiragana, katakana or ideographic characters, lower limit.
`static int`	`WORD_LETTER_LIMIT`	Tag value for words containing letters, upper limit
`static int`	`WORD_NONE`	Tag value for "words" that do not fit into any of other categories.
`static int`	`WORD_NONE_LIMIT`	Upper bound for tags for uncategorized words.
`static int`	`WORD_NUMBER`	Tag value for words that appear to be numbers, lower limit.
`static int`	`WORD_NUMBER_LIMIT`	Tag value for words that appear to be numbers, upper limit.

构造器概要

构造器
限定符构造器说明

protected BreakIterator()
Default constructor.

构造器
限定符	构造器	说明
`protected`	`BreakIterator()`	Default constructor.

方法概要

所有方法静态方法实例方法抽象方法具体方法已过时的方法
限定符和类型	方法	说明
`Object`	`clone()`	Clone method.
`abstract int`	`current()`	Return the iterator's current position.
`abstract int`	`first()`	Set the iterator to the first boundary position.
`abstract int`	`following(int offset)`	Sets the iterator's current iteration position to be the first boundary position following the specified position.
`static Locale[]`	`getAvailableLocales()`	Returns a list of locales for which BreakIterators can be used.
`static BreakIterator`	`getCharacterInstance()`	Returns a new instance of BreakIterator that locates logical-character boundaries.
`static BreakIterator`	`getCharacterInstance(Locale where)`	Returns a new instance of BreakIterator that locates logical-character boundaries.
`static BreakIterator`	`getCharacterInstance(ULocale where)`	[icu] Returns a new instance of BreakIterator that locates logical-character boundaries.
`static BreakIterator`	`getLineInstance()`	Returns a new instance of BreakIterator that locates legal line- wrapping positions.
`static BreakIterator`	`getLineInstance(Locale where)`	Returns a new instance of BreakIterator that locates legal line- wrapping positions.
`static BreakIterator`	`getLineInstance(ULocale where)`	[icu] Returns a new instance of BreakIterator that locates legal line- wrapping positions.
`int`	`getRuleStatus()`	For RuleBasedBreakIterators, return the status tag from the break rule that determined the boundary at the current iteration position.
`int`	`getRuleStatusVec(int[] fillInArray)`	For RuleBasedBreakIterators, get the status (tag) values from the break rule(s) that determined the the boundary at the current iteration position.
`static BreakIterator`	`getSentenceInstance()`	Returns a new instance of BreakIterator that locates sentence boundaries.
`static BreakIterator`	`getSentenceInstance(Locale where)`	Returns a new instance of BreakIterator that locates sentence boundaries.
`static BreakIterator`	`getSentenceInstance(ULocale where)`	[icu] Returns a new instance of BreakIterator that locates sentence boundaries.
`abstract CharacterIterator`	`getText()`	Returns a CharacterIterator over the text being analyzed.
`static BreakIterator`	`getTitleInstance()`	已过时。 ICU 64 Use `getWordInstance()` instead.
`static BreakIterator`	`getTitleInstance(Locale where)`	已过时。 ICU 64 Use `getWordInstance()` instead.
`static BreakIterator`	`getTitleInstance(ULocale where)`	已过时。 ICU 64 Use `getWordInstance()` instead.
`static BreakIterator`	`getWordInstance()`	Returns a new instance of BreakIterator that locates word boundaries.
`static BreakIterator`	`getWordInstance(Locale where)`	Returns a new instance of BreakIterator that locates word boundaries.
`static BreakIterator`	`getWordInstance(ULocale where)`	[icu] Returns a new instance of BreakIterator that locates word boundaries.
`boolean`	`isBoundary(int offset)`	Return true if the specified position is a boundary position.
`abstract int`	`last()`	Set the iterator to the last boundary position.
`abstract int`	`next()`	Advances the iterator forward one boundary.
`abstract int`	`next(int n)`	Move the iterator by the specified number of steps in the text.
`int`	`preceding(int offset)`	Sets the iterator's current iteration position to be the last boundary position preceding the specified position.
`abstract int`	`previous()`	Move the iterator backward one boundary.
`void`	`setText(CharSequence newText)`	Sets the iterator to analyze a new piece of text.
`void`	`setText(String newText)`	Sets the iterator to analyze a new piece of text.
`abstract void`	`setText(CharacterIterator newText)`	Sets the iterator to analyze a new piece of text.

从类继承的方法 java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 字段详细资料
  - DONE
```
public static final int DONE
```
    DONE is returned by previous() and next() after all valid boundaries have been returned.
    
    另请参阅:
    
    常量字段值
  - KIND_CHARACTER
```
public static final int KIND_CHARACTER
```
    [icu]
    
    另请参阅:
    
    常量字段值
  - KIND_LINE
```
public static final int KIND_LINE
```
    [icu]
    
    另请参阅:
    
    常量字段值
  - KIND_SENTENCE
```
public static final int KIND_SENTENCE
```
    [icu]
    
    另请参阅:
    
    常量字段值
  - KIND_TITLE
```
@Deprecated
public static final int KIND_TITLE
```
    已过时。 ICU 64 Use getWordInstance() instead.
    
    [icu]
    
    另请参阅:
    
    getTitleInstance(), getWordInstance(), 常量字段值
  - KIND_WORD
```
public static final int KIND_WORD
```
    [icu]
    
    另请参阅:
    
    常量字段值
  - WORD_IDEO
```
public static final int WORD_IDEO
```
    Tag value for words containing ideographic characters, lower limit
    
    另请参阅:
    
    常量字段值
  - WORD_IDEO_LIMIT
```
public static final int WORD_IDEO_LIMIT
```
    Tag value for words containing ideographic characters, upper limit
    
    另请参阅:
    
    常量字段值
  - WORD_KANA
```
public static final int WORD_KANA
```
    Tag value for words containing kana characters, lower limit
    
    另请参阅:
    
    常量字段值
  - WORD_KANA_LIMIT
```
public static final int WORD_KANA_LIMIT
```
    Tag value for words containing kana characters, upper limit
    
    另请参阅:
    
    常量字段值
  - WORD_LETTER
```
public static final int WORD_LETTER
```
    Tag value for words that contain letters, excluding hiragana, katakana or ideographic characters, lower limit.
    
    另请参阅:
    
    常量字段值
  - WORD_LETTER_LIMIT
```
public static final int WORD_LETTER_LIMIT
```
    Tag value for words containing letters, upper limit
    
    另请参阅:
    
    常量字段值
  - WORD_NONE
```
public static final int WORD_NONE
```
    Tag value for "words" that do not fit into any of other categories. Includes spaces and most punctuation.
    
    另请参阅:
    
    常量字段值
  - WORD_NONE_LIMIT
```
public static final int WORD_NONE_LIMIT
```
    Upper bound for tags for uncategorized words.
    
    另请参阅:
    
    常量字段值
  - WORD_NUMBER
```
public static final int WORD_NUMBER
```
    Tag value for words that appear to be numbers, lower limit.
    
    另请参阅:
    
    常量字段值
  - WORD_NUMBER_LIMIT
```
public static final int WORD_NUMBER_LIMIT
```
    Tag value for words that appear to be numbers, upper limit.
    
    另请参阅:
    
    常量字段值
- 构造器详细资料
  - BreakIterator
```
protected BreakIterator()
```
    Default constructor. There is no state that is carried by this abstract base class.
- 方法详细资料
  - clone
```
public Object clone()
```
    Clone method. Creates another BreakIterator with the same behavior and current state as this one.
    
    覆盖:
    
    clone 在类中 Object
    
    返回:
    
    The clone.
    
    另请参阅:
    
    Cloneable
  - first
```
public abstract int first()
```
    Set the iterator to the first boundary position. This is always the beginning index of the text this iterator iterates over. For example, if the iterator iterates over a whole string, this function will always return 0.
    
    返回:
    
    The character offset of the beginning of the stretch of text being broken.
  - last
```
public abstract int last()
```
    Set the iterator to the last boundary position. This is always the "past-the-end" index of the text this iterator iterates over. For example, if the iterator iterates over a whole string (call it "text"), this function will always return text.length().
    
    返回:
    
    The character offset of the end of the stretch of text being broken.
  - next
```
public abstract int next(int n)
```
    Move the iterator by the specified number of steps in the text. A positive number moves the iterator forward; a negative number moves the iterator backwards. If this causes the iterator to move off either end of the text, this function returns DONE; otherwise, this function returns the position of the appropriate boundary. Calling this function is equivalent to calling next() or previous() n times.
    
    参数:
    
    n - The number of boundaries to advance over (if positive, moves forward; if negative, moves backwards).
    
    返回:
    
    The position of the boundary n boundaries from the current iteration position, or DONE if moving n boundaries causes the iterator to advance off either end of the text.
  - next
```
public abstract int next()
```
    Advances the iterator forward one boundary. The current iteration position is updated to point to the next boundary position after the current position, and this is also the value that is returned. If the current position is equal to the value returned by last(), or to DONE, this function returns DONE and sets the current position to DONE.
    
    返回:
    
    The position of the first boundary position following the iteration position.
  - previous
```
public abstract int previous()
```
    Move the iterator backward one boundary. The current iteration position is updated to point to the last boundary position before the current position, and this is also the value that is returned. If the current position is equal to the value returned by first(), or to DONE, this function returns DONE and sets the current position to DONE.
    
    返回:
    
    The position of the last boundary position preceding the iteration position.
  - following
```
public abstract int following(int offset)
```
    Sets the iterator's current iteration position to be the first boundary position following the specified position. (Whether the specified position is itself a boundary position or not doesn't matter-- this function always moves the iteration position to the first boundary after the specified position.) If the specified position is the past-the-end position, returns DONE.
    
    参数:
    
    offset - The character position to start searching from.
    
    返回:
    
    The position of the first boundary position following "offset" (whether or not "offset" itself is a boundary position), or DONE if "offset" is the past-the-end offset.
  - preceding
```
public int preceding(int offset)
```
    Sets the iterator's current iteration position to be the last boundary position preceding the specified position. (Whether the specified position is itself a boundary position or not doesn't matter-- this function always moves the iteration position to the last boundary before the specified position.) If the specified position is the starting position, returns DONE.
    
    参数:
    
    offset - The character position to start searching from.
    
    返回:
    
    The position of the last boundary position preceding "offset" (whether of not "offset" itself is a boundary position), or DONE if "offset" is the starting offset of the iterator.
  - isBoundary
```
public boolean isBoundary(int offset)
```
    Return true if the specified position is a boundary position. If the function returns true, the current iteration position is set to the specified position; if the function returns false, the current iteration position is set as though following() had been called.
    
    参数:
    
    offset - the offset to check.
    
    返回:
    
    True if "offset" is a boundary position.
  - current
```
public abstract int current()
```
    Return the iterator's current position.
    
    返回:
    
    The iterator's current position.
  - getRuleStatus
```
public int getRuleStatus()
```
    For RuleBasedBreakIterators, return the status tag from the break rule that determined the boundary at the current iteration position.
    For break iterator types that do not support a rule status, a default value of 0 is returned.
    
    返回:
    
    The status from the break rule that determined the boundary at the current iteration position.
  - getRuleStatusVec
```
public int getRuleStatusVec(int[] fillInArray)
```
    For RuleBasedBreakIterators, get the status (tag) values from the break rule(s) that determined the the boundary at the current iteration position.
    For break iterator types that do not support rule status, no values are returned.
    If the size of the output array is insufficient to hold the data, the output will be truncated to the available length. No exception will be thrown.
    
    参数:
    
    fillInArray - an array to be filled in with the status values.
    
    返回:
    
    The number of rule status values from rules that determined the the boundary at the current iteration position. In the event that the array is too small, the return value is the total number of status values that were available, not the reduced number that were actually returned.
  - getText
```
public abstract CharacterIterator getText()
```
    Returns a CharacterIterator over the text being analyzed.
    Caution:The state of the returned CharacterIterator must not be modified in any way while the BreakIterator is still in use. Doing so will lead to undefined behavior of the BreakIterator. Clone the returned CharacterIterator first and work with that.
    The returned CharacterIterator is a reference to the actual iterator being used by the BreakIterator. No guarantees are made about the current position of this iterator when it is returned; it may differ from the BreakIterators current position. If you need to move that position to examine the text, clone this function's return value first.
    
    返回:
    
    A CharacterIterator over the text being analyzed.
  - setText
```
public void setText(String newText)
```
    Sets the iterator to analyze a new piece of text. The new piece of text is passed in as a String, and the current iteration position is reset to the beginning of the string. (The old text is dropped.)
    
    参数:
    
    newText - A String containing the text to analyze with this BreakIterator.
  - setText
```
public void setText(CharSequence newText)
```
    Sets the iterator to analyze a new piece of text. The new piece of text is passed in as a CharSequence, and the current iteration position is reset to the beginning of the text. (The old text is dropped.)
    The text underlying the CharSequence must not be be modified while the BreakIterator holds a references to it. (As could possibly occur with a StringBuilder, for example).
    
    参数:
    
    newText - A CharSequence containing the text to analyze with this BreakIterator.
  - setText
```
public abstract void setText(CharacterIterator newText)
```
    Sets the iterator to analyze a new piece of text. This function resets the current iteration position to the beginning of the text. (The old iterator is dropped.)
    Caution: The supplied CharacterIterator is used directly by the BreakIterator, and must not be altered in any way by code outside of the BreakIterator. Doing so will lead to undefined behavior of the BreakIterator.
    
    参数:
    
    newText - A CharacterIterator referring to the text to analyze with this BreakIterator (the iterator's current position is ignored, but its other state is significant).
  - getWordInstance
```
public static BreakIterator getWordInstance()
```
    Returns a new instance of BreakIterator that locates word boundaries. This function assumes that the text being analyzed is in the default locale's language.
    
    返回:
    
    An instance of BreakIterator that locates word boundaries.
  - getWordInstance
```
public static BreakIterator getWordInstance(Locale where)
```
    Returns a new instance of BreakIterator that locates word boundaries.
    
    参数:
    
    where - A locale specifying the language of the text to be analyzed.
    
    返回:
    
    An instance of BreakIterator that locates word boundaries.
    
    抛出:
    
    NullPointerException - if where is null.
  - getWordInstance
```
public static BreakIterator getWordInstance(ULocale where)
```
    [icu] Returns a new instance of BreakIterator that locates word boundaries.
    
    参数:
    
    where - A locale specifying the language of the text to be analyzed.
    
    返回:
    
    An instance of BreakIterator that locates word boundaries.
    
    抛出:
    
    NullPointerException - if where is null.
  - getLineInstance
```
public static BreakIterator getLineInstance()
```
    Returns a new instance of BreakIterator that locates legal line- wrapping positions. This function assumes the text being broken is in the default locale's language.
    
    返回:
    
    A new instance of BreakIterator that locates legal line-wrapping positions.
  - getLineInstance
```
public static BreakIterator getLineInstance(Locale where)
```
    Returns a new instance of BreakIterator that locates legal line- wrapping positions.
    
    参数:
    
    where - A Locale specifying the language of the text being broken.
    
    返回:
    
    A new instance of BreakIterator that locates legal line-wrapping positions.
    
    抛出:
    
    NullPointerException - if where is null.
  - getLineInstance
```
public static BreakIterator getLineInstance(ULocale where)
```
    [icu] Returns a new instance of BreakIterator that locates legal line- wrapping positions.
    
    参数:
    
    where - A Locale specifying the language of the text being broken.
    
    返回:
    
    A new instance of BreakIterator that locates legal line-wrapping positions.
    
    抛出:
    
    NullPointerException - if where is null.
  - getCharacterInstance
```
public static BreakIterator getCharacterInstance()
```
    Returns a new instance of BreakIterator that locates logical-character boundaries. This function assumes that the text being analyzed is in the default locale's language.
    
    返回:
    
    A new instance of BreakIterator that locates logical-character boundaries.
  - getCharacterInstance
```
public static BreakIterator getCharacterInstance(Locale where)
```
    Returns a new instance of BreakIterator that locates logical-character boundaries.
    
    参数:
    
    where - A Locale specifying the language of the text being analyzed.
    
    返回:
    
    A new instance of BreakIterator that locates logical-character boundaries.
    
    抛出:
    
    NullPointerException - if where is null.
  - getCharacterInstance
```
public static BreakIterator getCharacterInstance(ULocale where)
```
    [icu] Returns a new instance of BreakIterator that locates logical-character boundaries.
    
    参数:
    
    where - A Locale specifying the language of the text being analyzed.
    
    返回:
    
    A new instance of BreakIterator that locates logical-character boundaries.
    
    抛出:
    
    NullPointerException - if where is null.
  - getSentenceInstance
```
public static BreakIterator getSentenceInstance()
```
    Returns a new instance of BreakIterator that locates sentence boundaries. This function assumes the text being analyzed is in the default locale's language.
    
    返回:
    
    A new instance of BreakIterator that locates sentence boundaries.
  - getSentenceInstance
```
public static BreakIterator getSentenceInstance(Locale where)
```
    Returns a new instance of BreakIterator that locates sentence boundaries.
    
    参数:
    
    where - A Locale specifying the language of the text being analyzed.
    
    返回:
    
    A new instance of BreakIterator that locates sentence boundaries.
    
    抛出:
    
    NullPointerException - if where is null.
  - getSentenceInstance
```
public static BreakIterator getSentenceInstance(ULocale where)
```
    [icu] Returns a new instance of BreakIterator that locates sentence boundaries.
    
    参数:
    
    where - A Locale specifying the language of the text being analyzed.
    
    返回:
    
    A new instance of BreakIterator that locates sentence boundaries.
    
    抛出:
    
    NullPointerException - if where is null.
  - getTitleInstance
```
@Deprecated
public static BreakIterator getTitleInstance()
```
    已过时。 ICU 64 Use getWordInstance() instead.
    
    [icu] Returns a new instance of BreakIterator that locates title boundaries. This function assumes the text being analyzed is in the default locale's language. The iterator returned locates title boundaries as described for Unicode 3.2 only. For Unicode 4.0 and above title boundary iteration, please use a word boundary iterator. getWordInstance()
    
    返回:
    
    A new instance of BreakIterator that locates title boundaries.
  - getTitleInstance
```
@Deprecated
public static BreakIterator getTitleInstance(Locale where)
```
    已过时。 ICU 64 Use getWordInstance() instead.
    
    [icu] Returns a new instance of BreakIterator that locates title boundaries. The iterator returned locates title boundaries as described for Unicode 3.2 only. For Unicode 4.0 and above title boundary iteration, please use Word Boundary iterator.getWordInstance()
    
    参数:
    
    where - A Locale specifying the language of the text being analyzed.
    
    返回:
    
    A new instance of BreakIterator that locates title boundaries.
    
    抛出:
    
    NullPointerException - if where is null.
  - getTitleInstance
```
@Deprecated
public static BreakIterator getTitleInstance(ULocale where)
```
    已过时。 ICU 64 Use getWordInstance() instead.
    
    [icu] Returns a new instance of BreakIterator that locates title boundaries. The iterator returned locates title boundaries as described for Unicode 3.2 only. For Unicode 4.0 and above title boundary iteration, please use Word Boundary iterator.getWordInstance()
    
    参数:
    
    where - A Locale specifying the language of the text being analyzed.
    
    返回:
    
    A new instance of BreakIterator that locates title boundaries.
    
    抛出:
    
    NullPointerException - if where is null.
  - getAvailableLocales
```
public static Locale[] getAvailableLocales()
```
    Returns a list of locales for which BreakIterators can be used.
    
    返回:
    
    An array of Locales. All of the locales in the array can be used when creating a BreakIterator.

类 BreakIterator

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

DONE

KIND_CHARACTER

KIND_LINE

KIND_SENTENCE

KIND_TITLE

KIND_WORD

WORD_IDEO

WORD_IDEO_LIMIT

WORD_KANA

WORD_KANA_LIMIT

WORD_LETTER

WORD_LETTER_LIMIT

WORD_NONE

WORD_NONE_LIMIT

WORD_NUMBER

WORD_NUMBER_LIMIT

构造器详细资料

BreakIterator

方法详细资料

clone

first

last

next

next

previous

following

preceding

isBoundary

current

getRuleStatus

getRuleStatusVec

getText

setText

setText

setText

getWordInstance

getWordInstance

getWordInstance

getLineInstance

getLineInstance

getLineInstance

getCharacterInstance

getCharacterInstance

getCharacterInstance

getSentenceInstance

getSentenceInstance

getSentenceInstance

getTitleInstance

getTitleInstance

getTitleInstance

getAvailableLocales