OpenJDK 27 · java.lang.AbstractStringBuilder · APIdia, the JavaDoc alternative

Modifier and Type	Field and Description
pack-priv byte	coder The id of the encoding used to encode the bytes in `value`.
pack-priv int	count The count is the number of characters used.
private static final byte[]	EMPTYVALUE
pack-priv boolean	maybeLatin1 The attribute indicates `value` might be compressible to LATIN1 if it is UTF16-encoded.
pack-priv byte[]	value The value is used for character storage.

Access	Constructor and Description
pack-priv	AbstractStringBuilder() This no-arg constructor is necessary for serialization of subclasses.
pack-priv	AbstractStringBuilder(int capacity) Creates an AbstractStringBuilder of the specified capacity.
pack-priv	AbstractStringBuilder(String the string to copy. str) Constructs an AbstractStringBuilder that contains the same characters as the specified `String`.
pack-priv	AbstractStringBuilder(CharSequence the sequence to copy. seq) Constructs an AbstractStringBuilder that contains the same characters as the specified `CharSequence`.

Method Summary

Modifier and Type	Method and Description
public AbstractStringBuilder	Returns: a reference to this object. append(Object an `Object`. obj) Appends the string representation of the `Object` argument.
public AbstractStringBuilder	Returns: a reference to this object. append(String a string. str) Appends the specified string to this character sequence.
public AbstractStringBuilder	Returns: a reference to this object. append(StringBuffer the `StringBuffer` to append. sb) Appends the specified `StringBuffer` to this sequence.
pack-priv AbstractStringBuilder	append(AbstractStringBuilder asb)
public AbstractStringBuilder	append(CharSequence s) Implements java.lang.Appendable.append. Appends the specified character sequence to this `Appendable`.
public AbstractStringBuilder	Returns: a reference to this object. append(CharSequence the sequence to append. s, int the starting index of the subsequence to be appended. start, int the end index of the subsequence to be appended. end) Implements java.lang.Appendable.append. Appends a subsequence of the specified `CharSequence` to this sequence.
public AbstractStringBuilder	Returns: a reference to this object. append(char[] the characters to be appended. str) Appends the string representation of the `char` array argument to this sequence.
public AbstractStringBuilder	Returns: a reference to this object. append(char[] the characters to be appended. str, int the index of the first `char` to append. offset, int the number of `char`s to append. len) Appends the string representation of a subarray of the `char` array argument to this sequence.
public AbstractStringBuilder	Returns: a reference to this object. append(boolean a `boolean`. b) Appends the string representation of the `boolean` argument to the sequence.
public AbstractStringBuilder	Returns: a reference to this object. append(char a `char`. c) Implements java.lang.Appendable.append. Appends the string representation of the `char` argument to this sequence.
public AbstractStringBuilder	Returns: a reference to this object. append(int an `int`. i) Appends the string representation of the `int` argument to this sequence.
public AbstractStringBuilder	Returns: a reference to this object. append(long a `long`. l) Appends the string representation of the `long` argument to this sequence.
public AbstractStringBuilder	Returns: a reference to this object. append(float a `float`. f) Appends the string representation of the `float` argument to this sequence.
public AbstractStringBuilder	Returns: a reference to this object. append(double a `double`. d) Appends the string representation of the `double` argument to this sequence.
private static byte[]	Returns: buffer with new characters appended, possibly inflated appendChars(byte[] the current buffer value, byte the coder of the buffer coder, int the character count count, char[] a char array s, int the offset of the first character to append off, int end last (exclusive) character to append end) Returns buffer with new characters appended, possibly inflated.
private static byte[]	Returns: buffer with new characters appended, possibly inflated appendChars(byte[] the current buffer value, byte the coder of the buffer coder, int the character count count, String a string s, int the offset of the first character to append off, int end last (exclusive) character to append end) Returns buffer with new characters appended, possibly inflated.
private static byte[]	Returns: buffer with new characters appended, possibly inflated appendChars(byte[] the current buffer value, byte the coder of the buffer coder, int the character count count, CharSequence CharSequence to append characters from s, int the offset of the first character to append off, int end last (exclusive) character to append end) Returns buffer with new characters appended, possibly inflated.
public AbstractStringBuilder	Returns: a reference to this object. appendCodePoint(int a Unicode code point codePoint) Appends the string representation of the `codePoint` argument to this sequence.
private AbstractStringBuilder	appendNull()
public int	Returns: the current capacity capacity() Returns the current capacity.
public char	Returns: the `char` value at the specified index. charAt(int the index of the desired `char` value. index) Implements java.lang.CharSequence.charAt. Returns the `char` value in this sequence at the specified index.
public IntStream	chars() Overrides default java.lang.CharSequence.chars. Returns a stream of `int` zero-extending the `char` values from this sequence.
public int	Returns: the code point value of the character at the `index` codePointAt(int the index to the `char` values index) Returns the character (Unicode code point) at the specified index.
public int	Returns: the Unicode code point value before the given index. codePointBefore(int the index following the code point that should be returned index) Returns the character (Unicode code point) before the specified index.
public int	Returns: the number of Unicode code points in the specified text range codePointCount(int the index to the first `char` of the text range. beginIndex, int the index after the last `char` of the text range. endIndex) Returns the number of Unicode code points in the specified text range of this sequence.
public IntStream	codePoints() Overrides default java.lang.CharSequence.codePoints. Returns a stream of code point values from this sequence.
pack-priv int	compareTo(AbstractStringBuilder another) Compares the objects of two AbstractStringBuilder implementations lexicographically.
public AbstractStringBuilder	Returns: This object. delete(int The beginning index, inclusive. start, int The ending index, exclusive. end) Removes the characters in a substring of this sequence.
public AbstractStringBuilder	Returns: This object. deleteCharAt(int Index of `char` to remove index) Removes the `char` at the specified position in this sequence.
public void	ensureCapacity(int the minimum desired capacity. minimumCapacity) Ensures that the capacity is at least equal to the specified minimum.
private static byte[]	Returns: the value, with the requested coder, in a buffer with at least the minimum capacity ensureCapacityNewCoder(byte[] the current buffer value, byte of the current buffer coder, int the count of chars in the current buffer count, int the new minimum capacity minimumCapacity, byte the desired new coder newCoder) Returns the value, with the requested coder, in a buffer with at least the minimum capacity.
private static byte[]	Returns: the value buffer sufficient to hold the minimumCapactity and a copy of the contents ensureCapacitySameCoder(byte[] the current buffer value, byte of the current buffer coder, int the new minimum capacity minimumCapacity) Returns the value buffer sufficient to hold the minimumCapactity and a copy of the contents.
pack-priv void	getBytes(byte[] dst, int dstBegin, byte coder)
public void	getChars(int srcBegin, int srcEnd, char[] dst, int dstBegin) Overrides default java.lang.CharSequence.getChars. Copies characters from this sequence into the given destination array.
pack-priv final byte	getCoder()
pack-priv final byte[]	getValue() Needed by `String` for the contentEquals method.
public int	Returns: the index of the first occurrence of the specified substring, or `-1` if there is no such occurrence. indexOf(String the substring to search for. str) Returns the index within this string of the first occurrence of the specified substring.
public int	Returns: the index of the first occurrence of the specified substring, starting at the specified index, or `-1` if there is no such occurrence. indexOf(String the substring to search for. str, int the index from which to start the search. fromIndex) Returns the index within this string of the first occurrence of the specified substring, starting at the specified index.
private static byte[]	inflateIfNeededFor(byte[] value, int count, byte coder, byte otherCoder)
private static byte[]	Returns: the new buffer, the caller is responsible for updates to the coder inflateToUTF16(byte[] the current byte array buffer value, int the number of latin1 characters to convert to UTF16 count) Inflates the internal 8-bit latin1 storage to 16-bit <hi=0, low> pair storage.
pack-priv void	initBytes(char[] value, int off, int len)
public AbstractStringBuilder	Returns: This object insert(int position at which to insert subarray. index, char[] A `char` array. str, int the index of the first `char` in subarray to be inserted. offset, int the number of `char`s in the subarray to be inserted. len) Inserts the string representation of a subarray of the `str` array argument into this sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. offset, Object an `Object`. obj) Inserts the string representation of the `Object` argument into this character sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. offset, String a string. str) Inserts the string into this character sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. offset, char[] a character array. str) Inserts the string representation of the `char` array argument into this sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. dstOffset, CharSequence the sequence to be inserted s) Inserts the specified `CharSequence` into this sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset in this sequence. dstOffset, CharSequence the sequence to be inserted. s, int the starting index of the subsequence to be inserted. start, int the end index of the subsequence to be inserted. end) Inserts a subsequence of the specified `CharSequence` into this sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. offset, boolean a `boolean`. b) Inserts the string representation of the `boolean` argument into this sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. offset, char a `char`. c) Inserts the string representation of the `char` argument into this sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. offset, int an `int`. i) Inserts the string representation of the second `int` argument into this sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. offset, long a `long`. l) Inserts the string representation of the `long` argument into this sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. offset, float a `float`. f) Inserts the string representation of the `float` argument into this sequence.
public AbstractStringBuilder	Returns: a reference to this object. insert(int the offset. offset, double a `double`. d) Inserts the string representation of the `double` argument into this sequence.
pack-priv final boolean	isLatin1()
private static boolean	isLatin1(byte coder)
public int	Returns: the index of the last occurrence of the specified substring, or `-1` if there is no such occurrence. lastIndexOf(String the substring to search for. str) Returns the index within this string of the last occurrence of the specified substring.
public int	Returns: the index of the last occurrence of the specified substring, searching backward from the specified index, or `-1` if there is no such occurrence. lastIndexOf(String the substring to search for. str, int the index to start the search from. fromIndex) Returns the index within this string of the last occurrence of the specified substring, searching backward starting at the specified index.
public int	Returns: the length of the sequence of characters currently represented by this object length() Implements java.lang.CharSequence.length. Returns the length (character count).
private static boolean	Returns: true if the byte array should be replaced due to increased capacity or coder change needsNewBuffer(byte[] a byte array value, byte old coder coder, int new capacity in characters newCapacity, byte new coder newCoder) Returns true if the byte array should be replaced due to increased capacity or coder change.
private static int	newCapacity(byte[] the current buffer value, byte of the current buffer coder, int the desired minimum capacity minCapacity) Returns a capacity at least as large as the given minimum capacity.
public int	Returns: the index within this sequence offsetByCodePoints(int the index to be offset index, int the offset in code points codePointOffset) Returns the index within this sequence that is offset from the given `index` by `codePointOffset` code points.
private static byte[]	Returns: Return the buffer containing the composed string and inserted characters putCharsAt(byte[] byte array destination for the string (if the coder matches) value, byte the original buffer coder coder, int the count of characters in the original buffer count, int the insertion point index, char[] char[] array to insert from s, int offset of the first character off, int the offset of the last character (exclusive) end) Returns Return the buffer containing the composed string and inserted characters.
private static byte[]	Returns: Return the buffer containing the composed string and inserted characters putCharsAt(byte[] byte array destination for the string (if the coder matches) value, byte the original buffer coder coder, int the count of characters in the original buffer count, int the insertion point index, CharSequence CharSequence to insert from s, int offset of the first character off, int the offset of the last character (exclusive) end) Returns Return the buffer containing the composed string and inserted characters.
private static byte[]	Returns: the buffer with the substring inserted putStringAt(byte[] an existing buffer to insert into value, byte the coder of the buffer coder, int the count of characters in the buffer count, int the index to insert the string index, String the string str) Returns the buffer with the substring inserted.
private AbstractStringBuilder	repeat(char c, int count)
public AbstractStringBuilder	Returns: a reference to this object. repeat(int code point to append codePoint, int number of times to copy count) Repeats `count` copies of the string representation of the `codePoint` argument to this sequence.
public AbstractStringBuilder	Returns: a reference to this object. repeat(CharSequence a `CharSequence` cs, int number of times to copy count) Appends `count` copies of the specified `CharSequence` `cs` to this sequence.
public AbstractStringBuilder	Returns: This object. replace(int The beginning index, inclusive. start, int The ending index, exclusive. end, String String that will replace previous contents. str) Replaces the characters in a substring of this sequence with characters in the specified `String`.
public AbstractStringBuilder	Returns: a reference to this object. reverse() Causes this character sequence to be replaced by the reverse of the sequence.
public void	setCharAt(int the index of the character to modify. index, char the new character. ch) The character at the specified index is set to `ch`.
public void	setLength(int the new length newLength) Sets the length of the character sequence.
private static void	shift(byte[] value, byte coder, int count, int offset, int n)
public CharSequence	Returns: the specified subsequence. subSequence(int the start index, inclusive. start, int the end index, exclusive. end) Implements java.lang.CharSequence.subSequence. Returns a character sequence that is a subsequence of this sequence.
public String	Returns: A string containing the specified subsequence of characters. substring(int The beginning index, inclusive. start) Returns a `String` that contains a subsequence of characters currently contained in this character sequence.
public String	Returns: A string containing the specified subsequence of characters. substring(int The beginning index, inclusive. start, int The ending index, exclusive. end) Returns a `String` that contains a subsequence of characters currently contained in this sequence.
public abstract String	Returns: a string representation of this sequence of characters. toString() Redeclares java.lang.CharSequence.toString. Overrides java.lang.Object.toString. Returns a string representing the data in this sequence.
public void	trimToSize() Attempts to reduce storage used for the character sequence.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll wait wait wait

pack-priv abstract sealed Class AbstractStringBuilder

Field Summary

Constructor Summary

Method Summary