CharSequence

java.lang.CharSequence

Known Indirect Subclasses

AlteredCharSequence, CharBuffer, Editable, GetChars, Spannable, SpannableString, SpannableStringBuilder, Spanned, SpannedString, String, StringBuffer, StringBuilder

AlteredCharSequence	An AlteredCharSequence is a CharSequence that is largely mirrored from another CharSequence, except that a specified range of characters are mirrored from a different char array instead.
CharBuffer	A buffer of chars.
Editable	This is the interface for text whose content and markup can be changed (as opposed to immutable text like Strings).
GetChars	Please implement this interface if your CharSequence has a getChars() method like the one in String that is faster than calling charAt() multiple times.
Spannable	This is the interface for text to which markup objects can be attached and detached.
SpannableString	This is the class for text whose content is immutable but to which markup objects can be attached and detached.
SpannableStringBuilder	This is the class for text whose content and markup can both be changed.
Spanned	This is the interface for text that has markup objects attached to ranges of it.
SpannedString	This is the class for text whose content and markup are immutable.
String	An immutable sequence of UTF-16 `char`s.
StringBuffer	A modifiable `sequence of characters` for use in creating strings, where all accesses are synchronized.
StringBuilder	A modifiable `sequence of characters` for use in creating strings.

Class Overview

This interface represents an ordered set of characters and defines the methods to probe them.

Summary

Public Methods
abstract char	charAt(int index) Returns the character at `index`.
abstract int	length() Returns the number of characters in this sequence.
abstract CharSequence	subSequence(int start, int end) Returns a `CharSequence` from the `start` index (inclusive) to the `end` index (exclusive) of this sequence.
abstract String	toString() Returns a string with the same characters in the same order as in this sequence.

Public Methods

public abstract char charAt (int index)

Added in API level 1

Returns the character at index.

Throws

IndexOutOfBoundsException	if `index < 0` or `index >= length()`.

public abstract int length ()

Added in API level 1

Returns the number of characters in this sequence.

Returns

the number of characters.

public abstract CharSequence subSequence (int start, int end)

Added in API level 1

Returns a CharSequence from the start index (inclusive) to the end index (exclusive) of this sequence.

Parameters

start	the start offset of the sub-sequence. It is inclusive, that is, the index of the first character that is included in the sub-sequence.
end	the end offset of the sub-sequence. It is exclusive, that is, the index of the first character after those that are included in the sub-sequence

Returns

the requested sub-sequence.

Throws

IndexOutOfBoundsException	if `start < 0`, `end < 0`, `start > end`, or if `start` or `end` are greater than the length of this sequence.

public abstract String toString ()

Added in API level 1

Returns a string with the same characters in the same order as in this sequence.

Returns

a string based on this sequence.

Results

Annotations

Interfaces

Classes

Enums

Exceptions

Errors

CharSequence

Class Overview

Summary

Public Methods

public abstract char charAt (int index)

Throws

public abstract int length ()

Returns

public abstract CharSequence subSequence (int start, int end)

Parameters

Returns

Throws

public abstract String toString ()

Returns