Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.ByteBuffer;

public class Main {
    public static void main(String[] argv) throws Exception {
        ByteBuffer buf = ByteBuffer.allocate(10);
        OutputStream os = new ByteBufferBackedOutputStream(buf);
        InputStream is = new ByteBufferBackedInputStream(buf);
    }

}

class ByteBufferBackedInputStream extends InputStream {

    ByteBuffer buf;

    ByteBufferBackedInputStream(ByteBuffer buf) {
        this.buf = buf;
    }

    public synchronized int read() throws IOException {
        if (!buf.hasRemaining()) {
            return -1;
        }
        return buf.get();
    }

    public synchronized int read(byte[] bytes, int off, int len) throws IOException {
        len = Math.min(len, buf.remaining());
        buf.get(bytes, off, len);
        return len;
    }
}

class ByteBufferBackedOutputStream extends OutputStream {
    ByteBuffer buf;

    ByteBufferBackedOutputStream(ByteBuffer buf) {
        this.buf = buf;
    }

    public synchronized void write(int b) throws IOException {
        buf.put((byte) b);
    }

    public synchronized void write(byte[] bytes, int off, int len) throws IOException {
        buf.put(bytes, off, len);
    }

}