CharArrayWriter class « CharArrayWriter « Writer for Output « File Stream

Constructor	Summary
CharArrayWriter()	Creates a new CharArrayWriter.
CharArrayWriter(int initialSize)	Creates a new CharArrayWriter with the specified initial size.

Return	Method	Summary
CharArrayWriter	append(char c)	Appends the specified character to this writer.
CharArrayWriter	append(CharSequence csq)	Appends the specified character sequence to this writer.
CharArrayWriter	append(CharSequence csq, int start, int end)	Appends a subsequence of the specified character sequence to this writer.
void	close()	Close the stream.
void	flush()	Flush the stream.
void	reset()	Resets the buffer so that you can use it again without throwing away the already allocated buffer.
int	size()	Returns the current size of the buffer.
char[]	toCharArray()	Returns a copy of the input data.
String	toString()	Converts input data to a string.
void	write(char[] c, int off, int len)	Writes characters to the buffer.
void	write(int c)	Writes a character to the buffer.
void	write(String str, int off, int len)	Write a portion of a string to the buffer.
void	writeTo(Writer out)	Writes the contents of the buffer to another character stream.


import java.io.CharArrayWriter;
import java.io.IOException;

public class Main {
  public static void main(String args[]) throws IOException {
    CharArrayWriter outStream = new CharArrayWriter();
    outStream.write('a');
    outStream.write('b');
    outStream.write('c');
    outStream.write('d');
    outStream.write('e');
    outStream.write('f');
    outStream.write("java2s.com");
    
    System.out.println("outstream: " + outStream);
    System.out.println("size: " + outStream.size());

  }
}


outstream: abcdefjava2s.com
size: 16