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分类: Java

2009-05-07 16:34:53

import java.io.*;
public class Pipedstream
{
public static void main (String args[])
{
PipedInputStream in = new PipedInputStream();
PipedOutputStream out = new PipedOutputStream();
try
{
in.connect(out);
}
catch(IOException ioe) { }
Send s1 = new Send(out,1);
Send s2 = new Send(out,2);
Receive r1 = new Receive(in);
Receive r2 = new Receive(in);
s1.start();
s2.start();
r1.start();
r2.start();
}
}
class Send extends Thread //发送线程
{
PipedOutputStream out;
static int count=0; //记录线程个数
int k=0;
public Send(PipedOutputStream out,int k)
{
this.out= out;
this.k= k;
this.count++; //线程个数加1
}
public void run( )
{
System.out.print("\r\nSend"+this.k+": "+this.getName()+" ");
int i=k;
try
{
while (i<10)
{
out.write(i);
i+=2;
sleep(1);
}
if (Send.count==1) //只剩一个线程时
{
out.close(); //关闭输入管道流
System.out.println(" out closed!");
}
else
this.count--; //线程个数减1
}
catch(InterruptedException e) { }
catch(IOException e) { }
}
}
class Receive extends Thread //接收线程
{
PipedInputStream in;
public Receive(PipedInputStream in)
{
this.in = in;
}
public void run( )
{
System.out.print("\r\nReceive: "+this.getName()+" ");
try
{
int i = in.read();
while (i!=-1) //输入流未结束时
{
System.out.print(i+" ");
i = in.read();
sleep(1);
}
in.close(); //关闭输入管道流
}
catch(InterruptedException e) { }
catch(IOException e)
{
System.out.println(e);
}
}
}
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