printwriter.java

俄罗斯高人Mamaich的Pocket gcc编译器（运行在PocketPC上）的全部源代码。

   */
  public void print(double dnum)
  {
    // We purposely call write() and not print() here.  This preserves
    // compatibility with JDK 1.2.
    write(Double.toString(dnum));
  }

  /**
   * This method prints an <code>Object</code> to the stream.  The actual
   * value printed is determined by calling the <code>String.valueOf()</code>
   * method.
   *
   * @param obj The <code>Object</code> to print.
   */
  public void print(Object obj)
  {
    // We purposely call write() and not print() here.  This preserves
    // compatibility with JDK 1.2.
    write(obj == null ? "null" : obj.toString());
  }

  /**
   * This is the system dependent line separator
   */
  private static final char[] line_separator
  = System.getProperty("line.separator").toCharArray();

  /**
   * This method prints a line separator sequence to the stream.  The value
   * printed is determined by the system property <xmp>line.separator</xmp>
   * and is not necessarily the Unix '\n' newline character.
   */
  public void println()
  {
    synchronized (lock)
      {
	try
	  {
	    write(line_separator, 0, line_separator.length);
	    if (autoflush)
	      out.flush();
	  }
	catch (IOException ex)
	  {
	    error = true;
	  }
      }
  }

  /**
   * This methods prints a boolean value to the stream.  <code>true</code>
   * values are printed as "true" and <code>false</code> values are printed
   * as "false".
   *
   * This method prints a line termination sequence after printing the value.
   *
   * @param bool The <code>boolean</code> value to print
   */
  public void println(boolean bool)
  {
    synchronized (lock)
      {
	print(bool);
	println();
      }
  }

  /**
   * This method prints an integer to the stream.  The value printed is
   * determined using the <code>String.valueOf()</code> method.
   *
   * This method prints a line termination sequence after printing the value.
   *
   * @param inum The <code>int</code> value to be printed
   */
  public void println(int inum)
  {
    synchronized (lock)
      {
	print(inum);
	println();
      }
  }

  /**
   * This method prints a long to the stream.  The value printed is
   * determined using the <code>String.valueOf()</code> method.
   *
   * This method prints a line termination sequence after printing the value.
   *
   * @param lnum The <code>long</code> value to be printed
   */
  public void println(long lnum)
  {
    synchronized (lock)
      {
	print(lnum);
	println();
      }
  }

  /**
   * This method prints a float to the stream.  The value printed is
   * determined using the <code>String.valueOf()</code> method.
   *
   * This method prints a line termination sequence after printing the value.
   *
   * @param fnum The <code>float</code> value to be printed
   */
  public void println(float fnum)
  {
    synchronized (lock)
      {
	print(fnum);
	println();
      }
  }

  /**
   * This method prints a double to the stream.  The value printed is
   * determined using the <code>String.valueOf()</code> method.
   *
   * This method prints a line termination sequence after printing the value.
   *
   * @param dnum The <code>double</code> value to be printed
   */
  public void println(double dnum)
  {
    synchronized (lock)
      {
	print(dnum);
	println();
      }
  }

  /**
   * This method prints an <code>Object</code> to the stream.  The actual
   * value printed is determined by calling the <code>String.valueOf()</code>
   * method.
   *
   * This method prints a line termination sequence after printing the value.
   *
   * @param obj The <code>Object</code> to print.
   */
  public void println(Object obj)
  {
    synchronized (lock)
      {
	print(obj);
	println();
      }
  }

  /**
   * This method prints a <code>String</code> to the stream.  The actual
   * value printed depends on the system default encoding.
   *
   * This method prints a line termination sequence after printing the value.
   *
   * @param str The <code>String</code> to print.
   */
  public void println(String str)
  {
    synchronized (lock)
      {
	print(str);
	println();
      }
  }

  /**
   * This method prints a char to the stream.  The actual value printed is
   * determined by the character encoding in use.
   *
   * This method prints a line termination sequence after printing the value.
   *
   * @param ch The <code>char</code> value to be printed
   */
  public void println(char ch)
  {
    synchronized (lock)
      {
	print(ch);
	println();
      }
  }

  /**
   * This method prints an array of characters to the stream.  The actual
   * value printed depends on the system default encoding.
   *
   * This method prints a line termination sequence after printing the value.
   *
   * @param charArray The array of characters to print.
   */
  public void println(char[] charArray)
  {
    synchronized (lock)
      {
	print(charArray);
	println();
      }
  }

  /**
   * This method writes a single char to the stream. 
   * 
   * @param ch The char to be written, passed as a int
   */
  public void write(int ch)
  {
    try
      {
	out.write(ch);
      }
    catch (IOException ex)
      {
	error = true;
      }
  }

  /**
   * This method writes <code>count</code> chars from the specified array 
   * starting at index <code>offset</code> into the array.
   *
   * @param charArray The array of chars to write
   * @param offset The index into the array to start writing from
   * @param count The number of chars to write
  */
  public void write(char[] charArray, int offset, int count)
  {
    try
      {
	out.write(charArray, offset, count);
      }
    catch (IOException ex)
      {
	error = true;
      }
  }

  /**
   * This method writes <code>count</code> chars from the specified
   * <code>String</code> to the output starting at character position
   * <code>offset</code> into the <code>String</code>
   *
   * @param str The <code>String</code> to write chars from
   * @param offset The offset into the <code>String</code> to start writing from
   * @param count The number of chars to write.
   */
  public void write(String str, int offset, int count)
  {
    try
      {
	out.write(str, offset, count);
      }
    catch (IOException ex)
      {
	error = true;
      }
  }

  /**
   * This method write all the chars in the specified array to the output.
   *
   * @param charArray The array of characters to write
   */
  public void write(char[] charArray)
  {
    write(charArray, 0, charArray.length);
  }  

  /**
   * This method writes the contents of the specified <code>String</code>
   * to the underlying stream.
   *
   * @param str The <code>String</code> to write
   */
  public void write(String str)
  {
    write(str, 0, str.length());
  }  
}