管道

import java.io.IOException;
import java.io.PipedReader;
import java.io.PipedWriter;
public class Piped {

public static void main(String[] args) throws IOException {

PipedWriter writer = new PipedWriter();

PipedReader reader = new PipedReader();

// 将输入输出管道进行绑定,否则会排除IOException异常

writer.connect(reader);
    new Thread(new Print(reader), "print").start();

    // 往管道里写内容
    int receive;
    while ((receive = System.in.read()) != -1)
        writer.write(receive);
}

private static class Print implements Runnable {
    private static PipedReader reader;

    Print(PipedReader reader) {
        this.reader = reader;
    }

    @Override
    public void run() {
        int receive;
        try {
            // 从管道里读取内容并输出. 
            while ((receive = reader.read()) != -1) {
                System.out.print((char) receive);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

}