Appendable

public interface Appendable

Known Indirect Subclasses BufferedWriter, CharArrayWriter, CharBuffer, Editable, FileWriter, FilterWriter, OutputStreamWriter, PipedWriter, PrintStream, PrintWriter, SpannableStringBuilder, StringBuffer, StringBuilder, StringWriter, Writer BufferedWriter Writes text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.  CharArrayWriter This class implements a character buffer that can be used as an Writer.  CharBuffer A char buffer.  Editable This is the interface for text whose content and markup can be changed (as opposed to immutable text like Strings).  FileWriter Convenience class for writing character files.  FilterWriter Abstract class for writing filtered character streams.  OutputStreamWriter An OutputStreamWriter is a bridge from character streams to byte streams: Characters written to it are encoded into bytes using a specified charset.  PipedWriter Piped character-output streams.  PrintStream A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently.  PrintWriter Prints formatted representations of objects to a text-output stream.  SpannableStringBuilder This is the class for text whose content and markup can both be changed.  StringBuffer A thread-safe, mutable sequence of characters.  StringBuilder A mutable sequence of characters.  StringWriter A character stream that collects its output in a string buffer, which can then be used to construct a string.  Writer Abstract class for writing to character streams.

An object to which char sequences and values can be appended. The Appendable interface must be implemented by any class whose instances are intended to receive formatted output from a Formatter.

The characters to be appended should be valid Unicode characters as described in Unicode Character Representation. Note that supplementary characters may be composed of multiple 16-bit char values.

Appendables are not necessarily safe for multithreaded access. Thread safety is the responsibility of classes that extend and implement this interface.

Since this interface may be implemented by existing classes with different styles of error handling there is no guarantee that errors will be propagated to the invoker.

Summary

Public methods

Appendable append (char c)

Appendable append (CharSequence csq, 
                int start, 
                int end)

     out.append(csq.subSequence(start, end)) 

Appendable append (CharSequence csq)