File	Doc	Category	Size	Date	Package
PrintStream.java	API Doc	phoneME MR2 API (J2ME)	14466	Wed May 02 17:59:54 BST 2007	java.io

PrintStream

• java.lang.Object
  • java.io.OutputStream

Fields Summary
private boolean	trouble
private OutputStreamWriter	charOut Track both the text- and character-output streams, so that their buffers can be flushed without flushing the entire stream.
private OutputStream	byteOut
private boolean	closing

Constructors Summary
public PrintStream(OutputStream out) Create a new print stream. This stream will not flush automatically. param out The output stream to which values and objects will be printed if (out == null) { throw new NullPointerException( /* #ifdef VERBOSE_EXCEPTIONS */ /// skipped "Null output stream" /* #endif */ ); } byteOut = out; this.charOut = new OutputStreamWriter(out);

Methods Summary
public boolean	checkError() Flush the stream and check its error state. The internal error state is set to true when the underlying output stream throws an IOException, and when the setError method is invoked. return True if and only if this stream has encountered an IOException, or the setError method has been invoked if (charOut != null) flush(); return trouble;
public void	close() Close the stream. This is done by flushing the stream and then closing the underlying output stream. see java.io.OutputStream#close() /* To avoid recursive closing */ synchronized (this) { if (! closing) { closing = true; try { charOut.close(); } catch (IOException x) { trouble = true; } charOut = null; byteOut = null; } }
private void	ensureOpen() Check to make sure that the stream has not been closed if (charOut == null) throw new IOException( /* #ifdef VERBOSE_EXCEPTIONS */ /// skipped "Stream closed" /* #endif */ );
public void	flush() Flush the stream. This is done by writing any buffered output bytes to the underlying output stream and then flushing that stream. see java.io.OutputStream#flush() synchronized (this) { try { ensureOpen(); charOut.flush(); } catch (IOException x) { trouble = true; } }
private void	newLine() try { synchronized (this) { ensureOpen(); charOut.write('\n"); } } catch (IOException x) { trouble = true; }
public void	print(boolean b) Print a boolean value. The string produced by {@link java.lang.String#valueOf(boolean)} is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the {@link #write(int)} method. param b The boolean to be printed write(b ? "true" : "false");
public void	print(char c) Print a character. The character is translated into one or more bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the {@link #write(int)} method. param c The char to be printed write(String.valueOf(c));
public void	print(int i) Print an integer. The string produced by {@link java.lang.String#valueOf(int)} is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the {@link #write(int)} method. param i The int to be printed see java.lang.Integer#toString(int) write(String.valueOf(i));
public void	print(long l) Print a long integer. The string produced by {@link java.lang.String#valueOf(long)} is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the {@link #write(int)} method. param l The long to be printed see java.lang.Long#toString(long) write(String.valueOf(l));
public void	print(char[] s) Print an array of characters. The characters are converted into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the {@link #write(int)} method. param s The array of chars to be printed throws NullPointerException If s is null write(s);
public void	print(java.lang.String s) Print a string. If the argument is null then the string "null" is printed. Otherwise, the string's characters are converted into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the {@link #write(int)} method. param s The String to be printed if (s == null) { s = "null"; } write(s);
public void	print(java.lang.Object obj) Print an object. The string produced by the {@link java.lang.String#valueOf(Object)} method is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the {@link #write(int)} method. param obj The Object to be printed see java.lang.Object#toString() write(String.valueOf(obj));
public void	println() Terminate the current line by writing the line separator string. The line separator string is defined by the system property line.separator, and is not necessarily a single newline character ('\n'). newLine();
public void	println(boolean x) Print a boolean and then terminate the line. This method behaves as though it invokes {@link #print(boolean)} and then {@link #println()}. param x The boolean to be printed synchronized (this) { print(x); newLine(); }
public void	println(char x) Print a character and then terminate the line. This method behaves as though it invokes {@link #print(char)} and then {@link #println()}. param x The char to be printed. synchronized (this) { print(x); newLine(); }
public void	println(int x) Print an integer and then terminate the line. This method behaves as though it invokes {@link #print(int)} and then {@link #println()}. param x The int to be printed. synchronized (this) { print(x); newLine(); }
public void	println(long x) Print a long and then terminate the line. This method behaves as though it invokes {@link #print(long)} and then {@link #println()}. param x a The long to be printed. synchronized (this) { print(x); newLine(); }
public void	println(char[] x) Print an array of characters and then terminate the line. This method behaves as though it invokes {@link #print(char[])} and then {@link #println()}. param x an array of chars to print. synchronized (this) { print(x); newLine(); }
public void	println(java.lang.String x) Print a String and then terminate the line. This method behaves as though it invokes {@link #print(String)} and then {@link #println()}. param x The String to be printed. synchronized (this) { print(x); newLine(); }
public void	println(java.lang.Object x) Print an Object and then terminate the line. This method behaves as though it invokes {@link #print(Object)} and then {@link #println()}. param x The Object to be printed. synchronized (this) { print(x); newLine(); }
protected void	setError() Set the error state of the stream to true. since JDK1.1 trouble = true;
private void	write(java.lang.String s) try { synchronized (this) { ensureOpen(); charOut.write(s); } } catch (IOException x) { trouble = true; }
public void	write(int b) Write the specified byte to this stream. If the byte is a newline and automatic flushing is enabled then the flush method will be invoked. Note that the byte is written as given; to write a character that will be translated according to the platform's default character encoding, use the print(char) or println(char) methods. param b The byte to be written see #print(char) see #println(char) try { synchronized (this) { ensureOpen(); byteOut.write(b); } } catch (IOException x) { trouble = true; }
public void	write(byte[] buf, int off, int len) Write len bytes from the specified byte array starting at offset off to this stream. If automatic flushing is enabled then the flush method will be invoked. Note that the bytes will be written as given; to write characters that will be translated according to the platform's default character encoding, use the print(char) or println(char) methods. param buf A byte array param off Offset from which to start taking bytes param len Number of bytes to write try { synchronized (this) { ensureOpen(); byteOut.write(buf, off, len); } } catch (IOException x) { trouble = true; }
private void	write(char[] buf) try { synchronized (this) { ensureOpen(); charOut.write(buf); } } catch (IOException x) { trouble = true; }