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  Class java.io.PrintWriter
</title>
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<pre>
<a href="packages.html">All Packages</a>  <a href="tree.html">Class Hierarchy</a>  <a href="Package-java.io.html">This Package</a>  <a href="java.io.PrintStream.html#_top_">Previous</a>  <a href="java.io.PushbackInputStream.html#_top_">Next</a>  <a href="AllNames.html">Index</a></pre>
<hr>
<h1>
  Class java.io.PrintWriter
</h1>
<pre>
<a href="java.lang.Object.html#_top_">java.lang.Object</a>
   |
   +----<a href="java.io.Writer.html#_top_">java.io.Writer</a>
           |
           +----java.io.PrintWriter
</pre>
<hr>
<dl>
  <dt> public class <b>PrintWriter</b>
  <dt> extends <a href="java.io.Writer.html#_top_">Writer</a>
</dl>
Print formatted representations of objects to a text-output stream.  This
 class implements all of the print methods found in PrintStream.  It does not
 contain methods for writing raw bytes, for which a program should use
 unencoded byte streams.
 <p> Unlike the PrintStream class, if automatic flushing is enabled it will
 be done only when one of the println() methods is invoked, rather than
 whenever a newline character happens to be output.  The println() methods
 use the platform's own notion of line separator rather than the newline
 character.
 <p> Methods in this class never throw I/O exceptions.  The client may
 inquire as to whether any errors have occurred by invoking checkError().
<p>
<hr>
<a name="index"></a>
<h2>
  <img src="images/constructor-index.gif" width=275 height=38 alt="Constructor Index">
</h2>
<dl>
  <dt> <img src="images/yellow-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#PrintWriter(java.io.OutputStream)"><b>PrintWriter</b></a>(OutputStream)
  <dd>  Create a new PrintWriter, without automatic line flushing, from an
 existing OutputStream.
  <dt> <img src="images/yellow-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#PrintWriter(java.io.OutputStream, boolean)"><b>PrintWriter</b></a>(OutputStream, boolean)
  <dd>  Create a new PrintWriter from an existing OutputStream.
  <dt> <img src="images/yellow-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#PrintWriter(java.io.Writer)"><b>PrintWriter</b></a>(Writer)
  <dd>  Create a new PrintWriter, without automatic line flushing.
  <dt> <img src="images/yellow-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#PrintWriter(java.io.Writer, boolean)"><b>PrintWriter</b></a>(Writer, boolean)
  <dd>  Create a new PrintWriter.
</dl>
<h2>
  <img src="images/method-index.gif" width=207 height=38 alt="Method Index">
</h2>
<dl>
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#checkError()"><b>checkError</b></a>()
  <dd>  Flush the stream and check its error state.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#close()"><b>close</b></a>()
  <dd> Close the stream.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#flush()"><b>flush</b></a>()
  <dd> Flush the stream.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#print(boolean)"><b>print</b></a>(boolean)
  <dd> Print a boolean.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#print(char)"><b>print</b></a>(char)
  <dd> Print a character.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#print(char[])"><b>print</b></a>(char[])
  <dd> Print an array of chracters.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#print(double)"><b>print</b></a>(double)
  <dd> Print a double.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#print(float)"><b>print</b></a>(float)
  <dd> Print a float.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#print(int)"><b>print</b></a>(int)
  <dd> Print an integer.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#print(long)"><b>print</b></a>(long)
  <dd> Print a long.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#print(java.lang.Object)"><b>print</b></a>(Object)
  <dd> Print an object.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#print(java.lang.String)"><b>print</b></a>(String)
  <dd> Print a String.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println()"><b>println</b></a>()
  <dd> Finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println(boolean)"><b>println</b></a>(boolean)
  <dd> Print a boolean, and then finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println(char)"><b>println</b></a>(char)
  <dd> Print a character, and then finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println(char[])"><b>println</b></a>(char[])
  <dd> Print an array of characters, and then finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println(double)"><b>println</b></a>(double)
  <dd> Print a double, and then finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println(float)"><b>println</b></a>(float)
  <dd> Print a float, and then finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println(int)"><b>println</b></a>(int)
  <dd> Print an integer, and then finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println(long)"><b>println</b></a>(long)
  <dd> Print a long, and then finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println(java.lang.Object)"><b>println</b></a>(Object)
  <dd> Print an Object, and then finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#println(java.lang.String)"><b>println</b></a>(String)
  <dd> Print a String, and then finish the line.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#setError()"><b>setError</b></a>()
  <dd> Indicate that an error has occurred.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#write(char[])"><b>write</b></a>(char[])
  <dd>  Write an array of characters.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#write(char[], int, int)"><b>write</b></a>(char[], int, int)
  <dd> Write a portion of an array of characters.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#write(int)"><b>write</b></a>(int)
  <dd> Write a single character.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#write(java.lang.String)"><b>write</b></a>(String)
  <dd>  Write a string.
  <dt> <img src="images/red-ball-small.gif" width=6 height=6 alt=" o ">
	<a href="#write(java.lang.String, int, int)"><b>write</b></a>(String, int, int)
  <dd> Write a portion of a string.
</dl>
<a name="constructors"></a>
<h2>
  <img src="images/constructors.gif" width=231 height=38 alt="Constructors">
</h2>
<a name="PrintWriter"></a>
<a name="PrintWriter(java.io.Writer)"><img src="images/yellow-ball.gif" width=12 height=12 alt=" o "></a>
<b>PrintWriter</b>
<pre>
 public PrintWriter(<a href="java.io.Writer.html#_top_">Writer</a> out)
</pre>
<dl>
  <dd> Create a new PrintWriter, without automatic line flushing.
<p>
  <dd><dl>
    <dt> <b>Parameters:</b>
    <dd> out - A character-output stream
  </dl></dd>
</dl>
<a name="PrintWriter(java.io.Writer, boolean)"><img src="images/yellow-ball.gif" width=12 height=12 alt=" o "></a>
<b>PrintWriter</b>
<pre>
 public PrintWriter(<a href="java.io.Writer.html#_top_">Writer</a> out,
                    boolean autoFlush)
</pre>
<dl>
  <dd> Create a new PrintWriter.
<p>
  <dd><dl>
    <dt> <b>Parameters:</b>
    <dd> out - A character-output stream
    <dd> autoFlush - A boolean; if true, the println() methods will flush
                    the output buffer
  </dl></dd>
</dl>
<a name="PrintWriter(java.io.OutputStream)"><img src="images/yellow-ball.gif" width=12 height=12 alt=" o "></a>
<b>PrintWriter</b>
<pre>
 public PrintWriter(<a href="java.io.OutputStream.html#_top_">OutputStream</a> out)
</pre>
<dl>
  <dd> Create a new PrintWriter, without automatic line flushing, from an
 existing OutputStream.  This convenience constructor creates the
 necessary intermediate OutputStreamWriter, which will convert characters
 into bytes using the default character encoding.
<p>
  <dd><dl>
    <dt> <b>Parameters:</b>
    <dd> out - An output stream
    <dt> <b>See Also:</b>
    <dd> <a href="java.io.OutputStreamWriter.html#OutputStreamWriter(java.io.OutputStream)">OutputStreamWriter</a>
  </dl></dd>
</dl>
<a name="PrintWriter(java.io.OutputStream, boolean)"><img src="images/yellow-ball.gif" width=12 height=12 alt=" o "></a>
<b>PrintWriter</b>
<pre>
 public PrintWriter(<a href="java.io.OutputStream.html#_top_">OutputStream</a> out,
                    boolean autoFlush)
</pre>
<dl>
  <dd> Create a new PrintWriter from an existing OutputStream.  This
 convenience constructor creates the necessary intermediate
 OutputStreamWriter, which will convert characters into bytes using the
 default character encoding.
<p>
  <dd><dl>
    <dt> <b>Parameters:</b>
    <dd> out - An output stream
    <dd> autoFlush - A boolean; if true, the println() methods will flush
                    the output buffer
    <dt> <b>See Also:</b>
    <dd> <a href="java.io.OutputStreamWriter.html#OutputStreamWriter(java.io.OutputStream)">OutputStreamWriter</a>
  </dl></dd>
</dl>
<a name="methods"></a>
<h2>
  <img src="images/methods.gif" width=151 height=38 alt="Methods">
</h2>
<a name="flush()"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="flush"><b>flush</b></a>
<pre>
 public void flush()
</pre>
<dl>
  <dd> Flush the stream.
<p>
  <dd><dl>
    <dt> <b>Overrides:</b>
    <dd> <a href="java.io.Writer.html#flush()">flush</a> in class <a href="java.io.Writer.html#_top_">Writer</a>
  </dl></dd>
</dl>
<a name="close()"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="close"><b>close</b></a>
<pre>
 public void close()
</pre>
<dl>
  <dd> Close the stream.
<p>
  <dd><dl>
    <dt> <b>Overrides:</b>
    <dd> <a href="java.io.Writer.html#close()">close</a> in class <a href="java.io.Writer.html#_top_">Writer</a>
  </dl></dd>
</dl>
<a name="checkError()"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="checkError"><b>checkError</b></a>
<pre>
 public boolean checkError()
</pre>
<dl>
  <dd> Flush the stream and check its error state.  Errors are cumulative;
 once the stream encounters an error, this routine will return true on
 all successive calls.
<p>
  <dd><dl>
    <dt> <b>Returns:</b>
    <dd> True if the print stream has encountered an error, either on the
 underlying output stream or during a format conversion.
  </dl></dd>
</dl>
<a name="setError()"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="setError"><b>setError</b></a>
<pre>
 protected void setError()
</pre>
<dl>
  <dd> Indicate that an error has occurred.
<p>
</dl>
<a name="write(int)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="write"><b>write</b></a>
<pre>
 public void write(int c)
</pre>
<dl>
  <dd> Write a single character.
<p>
  <dd><dl>
    <dt> <b>Overrides:</b>
    <dd> <a href="java.io.Writer.html#write(int)">write</a> in class <a href="java.io.Writer.html#_top_">Writer</a>
  </dl></dd>
</dl>
<a name="write(char[], int, int)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="write"><b>write</b></a>
<pre>
 public void write(char buf[],
                   int off,
                   int len)
</pre>
<dl>
  <dd> Write a portion of an array of characters.
<p>
  <dd><dl>
    <dt> <b>Overrides:</b>
    <dd> <a href="java.io.Writer.html#write(char[], int, int)">write</a> in class <a href="java.io.Writer.html#_top_">Writer</a>
  </dl></dd>
</dl>
<a name="write(char[])"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="write"><b>write</b></a>
<pre>
 public void write(char buf[])
</pre>
<dl>
  <dd> Write an array of characters.  This method cannot be inherited from the
 Writer class because it must suppress I/O exceptions.
<p>
  <dd><dl>
    <dt> <b>Overrides:</b>
    <dd> <a href="java.io.Writer.html#write(char[])">write</a> in class <a href="java.io.Writer.html#_top_">Writer</a>
  </dl></dd>
</dl>
<a name="write(java.lang.String, int, int)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="write"><b>write</b></a>
<pre>
 public void write(<a href="java.lang.String.html#_top_">String</a> s,
                   int off,
                   int len)
</pre>
<dl>
  <dd> Write a portion of a string.
<p>
  <dd><dl>
    <dt> <b>Overrides:</b>
    <dd> <a href="java.io.Writer.html#write(java.lang.String, int, int)">write</a> in class <a href="java.io.Writer.html#_top_">Writer</a>
  </dl></dd>
</dl>
<a name="write(java.lang.String)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="write"><b>write</b></a>
<pre>
 public void write(<a href="java.lang.String.html#_top_">String</a> s)
</pre>
<dl>
  <dd> Write a string.  This method cannot be inherited from the Writer class
 because it must suppress I/O exceptions.
<p>
  <dd><dl>
    <dt> <b>Overrides:</b>
    <dd> <a href="java.io.Writer.html#write(java.lang.String)">write</a> in class <a href="java.io.Writer.html#_top_">Writer</a>
  </dl></dd>
</dl>
<a name="print(boolean)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="print"><b>print</b></a>
<pre>
 public void print(boolean b)
</pre>
<dl>
  <dd> Print a boolean.
<p>
</dl>
<a name="print(char)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="print"><b>print</b></a>
<pre>
 public void print(char c)
</pre>
<dl>
  <dd> Print a character.
<p>
</dl>
<a name="print(int)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="print"><b>print</b></a>
<pre>
 public void print(int i)
</pre>
<dl>
  <dd> Print an integer.
<p>
</dl>
<a name="print(long)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="print"><b>print</b></a>
<pre>
 public void print(long l)
</pre>
<dl>
  <dd> Print a long.
<p>
</dl>
<a name="print(float)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="print"><b>print</b></a>
<pre>
 public void print(float f)
</pre>
<dl>
  <dd> Print a float.
<p>
</dl>
<a name="print(double)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="print"><b>print</b></a>
<pre>
 public void print(double d)
</pre>
<dl>
  <dd> Print a double.
<p>
</dl>
<a name="print(char[])"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="print"><b>print</b></a>
<pre>
 public void print(char s[])
</pre>
<dl>
  <dd> Print an array of chracters.
<p>
</dl>
<a name="print(java.lang.String)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="print"><b>print</b></a>
<pre>
 public void print(<a href="java.lang.String.html#_top_">String</a> s)
</pre>
<dl>
  <dd> Print a String.
<p>
</dl>
<a name="print(java.lang.Object)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="print"><b>print</b></a>
<pre>
 public void print(<a href="java.lang.Object.html#_top_">Object</a> obj)
</pre>
<dl>
  <dd> Print an object.
<p>
</dl>
<a name="println()"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println()
</pre>
<dl>
  <dd> Finish the line.
<p>
</dl>
<a name="println(boolean)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println(boolean x)
</pre>
<dl>
  <dd> Print a boolean, and then finish the line.
<p>
</dl>
<a name="println(char)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println(char x)
</pre>
<dl>
  <dd> Print a character, and then finish the line.
<p>
</dl>
<a name="println(int)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println(int x)
</pre>
<dl>
  <dd> Print an integer, and then finish the line.
<p>
</dl>
<a name="println(long)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println(long x)
</pre>
<dl>
  <dd> Print a long, and then finish the line.
<p>
</dl>
<a name="println(float)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println(float x)
</pre>
<dl>
  <dd> Print a float, and then finish the line.
<p>
</dl>
<a name="println(double)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println(double x)
</pre>
<dl>
  <dd> Print a double, and then finish the line.
<p>
</dl>
<a name="println(char[])"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println(char x[])
</pre>
<dl>
  <dd> Print an array of characters, and then finish the line.
<p>
</dl>
<a name="println(java.lang.String)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println(<a href="java.lang.String.html#_top_">String</a> x)
</pre>
<dl>
  <dd> Print a String, and then finish the line.
<p>
</dl>
<a name="println(java.lang.Object)"><img src="images/red-ball.gif" width=12 height=12 alt=" o "></a>
<a name="println"><b>println</b></a>
<pre>
 public void println(<a href="java.lang.Object.html#_top_">Object</a> x)
</pre>
<dl>
  <dd> Print an Object, and then finish the line.
<p>
</dl>
<hr>
<pre>
<a href="packages.html">All Packages</a>  <a href="tree.html">Class Hierarchy</a>  <a href="Package-java.io.html">This Package</a>  <a href="java.io.PrintStream.html#_top_">Previous</a>  <a href="java.io.PushbackInputStream.html#_top_">Next</a>  <a href="AllNames.html">Index</a></pre>
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