Question

I’m trying to create a InputStream class that behaves like a System.in InputStream but can be programatically added to (an endless InputStream that can be dynamically added to)

If you have trouble understanding what I mean, here’s what I have wrote and tried

   public class QueuedInputStream extends InputStream {

        private LinkedList<Character> list;

        public QueuedInputStream() {
            list = new LinkedList<Character>();
        }

        @Override
        public int read() throws IOException {
            while (list.isEmpty()) {
                try {
                    Thread.sleep(1);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            int value = (byte)list.get(0).charValue();
            list.remove();
            return value;
        }

        public void queue(String s) {
            char[] chars = s.toCharArray();
            for(int i = 0; i < chars.length; i++) {
                list.add(chars[i]);
            }
        }

    }

Am I on the right track? Or am I completely wrong in trying to do this?
If you want me to explain more, feel free to ask

Answer 1

PipedInputStream:

A piped input stream should be connected to a piped output stream; the
piped input stream then provides whatever data bytes are written to
the piped output stream.

ByteArrayInputStream:

A ByteArrayInputStream contains an internal buffer that contains bytes
that may be read from the stream.
(You give an array during construction, and the stream will read from it.)