Java.io.PipedWriter.flush() Method

Description

The java.io.PipedWriter.flush() method flushes this output stream and forces any buffered output characters to be written out. This will notify any readers that characters are waiting in the pipe.

Declaration

Following is the declaration for java.io.PipedWriter.flush() method

public void flush()

Parameters

• NA

Return Value

This method does not return a value.

Exception

• IOException -- if an I/O error occurs.

Example

The following example shows the usage of java.io.PipedWriter.flush() method.

package com.tutorialspoint;

import java.io.*;

public class PipedWriterDemo {

   public static void main(String[] args) {

      // create a new Piped writer and reader
      PipedWriter writer = new PipedWriter();
      PipedReader reader = new PipedReader();

      try {
         // connect the reader and the writer
         writer.connect(reader);

         // write something
         writer.write(70);
         writer.write(71);

         // flush the writer
         System.out.println("Flushing writer...");
         writer.flush();
         System.out.println("Writer flushed.");

         // print what we wrote
         for (int i = 0; i < 2; i++) {
            System.out.println("" + (char) reader.read());
         }

      } catch (IOException ex) {
         ex.printStackTrace();
      }


   }
}

Let us compile and run the above program, this will produce the following result:

Flushing writer...
Writer flushed.
F
G