using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace DotnetStreams { public class ListOutputTarget : IOutputTarget { public IList OutputList { get; } public ListOutputTarget(IList outputList) { this.OutputList = outputList; } public virtual void Open() { } public virtual void Output(string text) { OutputList.Add(text); } public virtual void Close() { } } }