static void Main(string[] args)
{
FileViewer viewer = new FileViewer();
Command command = new FileOpenCommand(viewer);
InvokeCommand invoke = new InvokeCommand(command);
invoke.ExecuteCommand();
}
public FileOpenCommand(FileViewer viewer)
{
this.fileViewer = viewer;
}
public FileOpenCommand(FileViewer viewer)
{
this.fileViewer = viewer;
}