using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Streams
{
    abstract class Example1
    {
        // Listing 16-1
        public abstract int Read(byte[] buffer, int offset, int count);
        public abstract void Write(byte[] buffer, int offset, int count);
        public abstract long Position { get; set; }
    }
}
