java 线程之间的管道通信

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java 线程之间的管道通信：

import java.io.IOException;import java.io.PipedReader;import java.io.PipedWriter;import java.util.Random;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import java.util.concurrent.TimeUnit;class Sender implements Runnable {private Random rand = new Random(47);private PipedWriter out = new PipedWriter();public PipedWriter getPipedWriter() {return out;}public void run() {try {while (true) {for (char c = 'A'; c <= 'z'; c++) {out.write(c);TimeUnit.MILLISECONDS.sleep(rand.nextInt(500));}}} catch (IOException e) {System.out.println("Sender write exception");} catch (InterruptedException e) {System.out.println("Sender sleep interrupted");}}}class Receiver implements Runnable {private PipedReader in;public Receiver(Sender sender) throws IOException {in = new PipedReader(sender.getPipedWriter());}public void run() {try {while (true) {System.out.println("Read: " + (char) in.read());}} catch (IOException e) {System.out.println("Receiver read exception");}}}public class PipedIO {public static void main(String[] args) throws Exception {Sender sender = new Sender();Receiver receiver = new Receiver(sender);ExecutorService exec = Executors.newCachedThreadPool();exec.execute(sender);exec.execute(receiver);TimeUnit.SECONDS.sleep(15);exec.shutdownNow();}}