Java.io.PipedInputStream.available() 方法

package com.codingdict;



import java.io.*;



public class PipedInputStreamDemo {



   public static void main(String[] args) {



      // create a new Piped input and Output Stream

      PipedOutputStream out = new PipedOutputStream();

      PipedInputStream in = new PipedInputStream();



      try {



         // connect input and output

         in.connect(out);



         // write something 

         out.write(70);

         out.write(71);



         // print how many bytes are available

         System.out.println("" + in.available());



         // read what we wrote

         for (int i = 0; i < 2; i++) {

            System.out.println("" + (char) in.read());

         }



      } catch (IOException ex) {

         ex.printStackTrace();

      }

   }

}