|
JavaTM 2 Platform Std. Ed. v1.3 |
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||
java.lang.Object
|
+--java.io.Writer
|
+--java.io.CharArrayWriter
This class implements a character buffer that can be used as an Writer. The buffer automatically grows when data is written to the stream. The data can be retrieved using toCharArray() and toString().
| Field Summary | |
protected char[] |
buf
The buffer where data is stored. |
protected int |
count
The number of chars in the buffer. |
| Fields inherited from class java.io.Writer |
lock |
| Constructor Summary | |
CharArrayWriter()
Creates a new CharArrayWriter. |
|
CharArrayWriter(int initialSize)
Creates a new CharArrayWriter with the specified initial size. |
|
| Method Summary | |
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. |
| Methods inherited from class java.io.Writer |
write, write |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Field Detail |
protected char[] buf
protected int count
| Constructor Detail |
public CharArrayWriter()
public CharArrayWriter(int initialSize)
initialSize - an int specifying the initial buffer size.IllegalArgumentException - if initialSize is negative| Method Detail |
public void write(int c)
write in class Writerjava.io.Writerc - int specifying a character to be written.IOException - If an I/O error occurs
public void write(char[] c,
int off,
int len)
write in class Writerc - the data to be writtenoff - the start offset in the datalen - the number of chars that are written
public void write(String str,
int off,
int len)
write in class Writerstr - String to be written fromoff - Offset from which to start reading characterslen - Number of characters to be written
public void writeTo(Writer out)
throws IOException
out - the output stream to write toIOException - If an I/O error occurs.public void reset()
public char[] toCharArray()
public int size()
public String toString()
toString in class Objectpublic void flush()
flush in class Writerjava.io.WriterIOException - If an I/O error occurspublic void close()
close in class Writerjava.io.WriterIOException - If an I/O error occurs
|
JavaTM 2 Platform Std. Ed. v1.3 |
|||||||||
| PREV CLASS NEXT CLASS | FRAMES NO FRAMES | |||||||||
| SUMMARY: INNER | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD | |||||||||
Java, Java 2D, and JDBC are trademarks or registered trademarks of Sun Microsystems, Inc. in the US and other countries.
Copyright 1993-2000 Sun Microsystems, Inc. 901 San Antonio Road
Palo Alto, California, 94303, U.S.A. All Rights Reserved.