JAVA_线程间流的通信

package com.kk.review;

import java.io.IOException;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;

public class PipedStream {
    public static void main(String[] args) {
        try{
            PipedInputStream pis=new PipedInputStream();
            PipedOutputStream pos=new PipedOutputStream();
            pis.connect(pos);
            new Producer(pos).start();
            new Consumer(pis).start();
        }catch(IOException ioe){
            ioe.printStackTrace();
        }
        
    }
}

class Producer extends Thread {
    PipedOutputStream pos;

    public Producer(PipedOutputStream pos) {
        this.pos = pos;
    }

    public void run(){
        try{
            pos.write("hello".getBytes());
            pos.close();
        }catch(IOException ioe){
            ioe.printStackTrace();
        }
    }
}

class Consumer extends Thread{
    PipedInputStream pis;
    public Consumer(PipedInputStream pis) {
        this.pis=pis;
    }
    public void run(){
        try{
            byte []buf=new byte[100];
            int len=pis.read(buf);
            String str=new String(buf,0,len);
            System.out.println(str);
            pis.close();
        }catch(IOException ioe){
            ioe.printStackTrace();
        }
    }
}