Java tutorial
import java.io.PipedInputStream; import java.io.PipedOutputStream; public class Main { public static void main(String[] args) throws Exception { PipedOutputStream out = new PipedOutputStream(); PipedInputStream in = new PipedInputStream(); // connect input and output in.connect(out); // write something out.write(70); out.write(71); // read what we wrote into an array of bytes byte[] b = new byte[2]; in.read(b, 0, 2); System.out.println(new String(b)); in.close(); } }