Java PipedReader.close()

public void close()  throws IOException

/*from ww  w  .j  a  va  2s .c  o m*/
import java.io.*;

public class Main {

   public static void main(String[] args) {

      
      PipedWriter writer = new PipedWriter();
      PipedReader reader = new PipedReader();

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

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

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

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


   }
}