Class PrintStream2

All Implemented Interfaces:
Closeable, Flushable, Appendable, AutoCloseable

public class PrintStream2 extends PrintStream
A PrintStream adds functionality to another output stream, namely the ability to print representations of various data values conveniently. Two other features are provided as well. Unlike other output streams, a PrintStream never throws an IOException; instead, exceptional situations merely set an internal flag that can be tested via the checkError method. Optionally, a PrintStream can be created so as to flush automatically; this means that the flush method is automatically invoked after a byte array is written, one of the println methods is invoked, or a newline character or byte ('\n') is written.

All characters printed by a PrintStream are converted into bytes using the platform's default character encoding. The PrintWriter class should be used in situations that require writing characters rather than bytes.

  • Constructor Details

  • Method Details

    • setNewOutput

      public void setNewOutput(OutputStream out)
      Sets a new output stream for the output. This is used by the rotate trace files.
    • ensureOpen

      protected void ensureOpen() throws IOException
      Check to make sure that the stream has not been closed
      Throws:
      IOException
    • flush

      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.
      Specified by:
      flush in interface Flushable
      Overrides:
      flush in class PrintStream
      See Also:
    • close

      public void close()
      Close the stream. This is done by flushing the stream and then closing the underlying output stream.
      Specified by:
      close in interface AutoCloseable
      Specified by:
      close in interface Closeable
      Overrides:
      close in class PrintStream
      See Also:
    • write

      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.

      Overrides:
      write in class PrintStream
      Parameters:
      b - The byte to be written
      See Also:
    • write

      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.

      Overrides:
      write in class PrintStream
      Parameters:
      buf - A byte array
      off - Offset from which to start taking bytes
      len - Number of bytes to write
    • print

      public void print(boolean b)
      Print a boolean value. The string produced by 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 write(int) method.
      Overrides:
      print in class PrintStream
      Parameters:
      b - The boolean to be printed
    • print

      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 write(int) method.
      Overrides:
      print in class PrintStream
      Parameters:
      c - The char to be printed
    • print

      public void print(int i)
      Print an integer. The string produced by 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 write(int) method.
      Overrides:
      print in class PrintStream
      Parameters:
      i - The int to be printed
      See Also:
    • print

      public void print(long l)
      Print a long integer. The string produced by 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 write(int) method.
      Overrides:
      print in class PrintStream
      Parameters:
      l - The long to be printed
      See Also:
    • print

      public void print(float f)
      Print a floating-point number. The string produced by String.valueOf(float) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.
      Overrides:
      print in class PrintStream
      Parameters:
      f - The float to be printed
      See Also:
    • print

      public void print(double d)
      Print a double-precision floating-point number. The string produced by String.valueOf(double) is translated into bytes according to the platform's default character encoding, and these bytes are written in exactly the manner of the write(int) method.
      Overrides:
      print in class PrintStream
      Parameters:
      d - The double to be printed
      See Also:
    • print

      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 write(int) method.
      Overrides:
      print in class PrintStream
      Parameters:
      s - The array of chars to be printed
      Throws:
      NullPointerException - If s is null
    • print

      public void print(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 write(int) method.
      Overrides:
      print in class PrintStream
      Parameters:
      s - The String to be printed
    • print

      public void print(Object obj)
      Print an object. The string produced by the 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 write(int) method.
      Overrides:
      print in class PrintStream
      Parameters:
      obj - The Object to be printed
      See Also:
    • println

      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').
      Overrides:
      println in class PrintStream
    • println

      public void println(boolean x)
      Print a boolean and then terminate the line. This method behaves as though it invokes print(boolean) and then println().
      Overrides:
      println in class PrintStream
      Parameters:
      x - The boolean to be printed
    • println

      public void println(char x)
      Print a character and then terminate the line. This method behaves as though it invokes print(char) and then println().
      Overrides:
      println in class PrintStream
      Parameters:
      x - The char to be printed.
    • println

      public void println(int x)
      Print an integer and then terminate the line. This method behaves as though it invokes print(int) and then println().
      Overrides:
      println in class PrintStream
      Parameters:
      x - The int to be printed.
    • println

      public void println(long x)
      Print a long and then terminate the line. This method behaves as though it invokes print(long) and then println().
      Overrides:
      println in class PrintStream
      Parameters:
      x - a The long to be printed.
    • println

      public void println(float x)
      Print a float and then terminate the line. This method behaves as though it invokes print(float) and then println().
      Overrides:
      println in class PrintStream
      Parameters:
      x - The float to be printed.
    • println

      public void println(double x)
      Print a double and then terminate the line. This method behaves as though it invokes print(double) and then println().
      Overrides:
      println in class PrintStream
      Parameters:
      x - The double to be printed.
    • println

      public void println(char[] x)
      Print an array of characters and then terminate the line. This method behaves as though it invokes print(char[]) and then println().
      Overrides:
      println in class PrintStream
      Parameters:
      x - an array of chars to print.
    • println

      public void println(String x)
      Print a String and then terminate the line. This method behaves as though it invokes print(String) and then println().
      Overrides:
      println in class PrintStream
      Parameters:
      x - The String to be printed.
    • println

      public void println(Object x)
      Print an Object and then terminate the line. This method behaves as though it invokes print(Object) and then println().
      Overrides:
      println in class PrintStream
      Parameters:
      x - The Object to be printed.