Going Open! C# for Everyone Mads Torgersen Microsoft Tiananmen Square https://insights.stackoverflow.com/survey/2018 https://insights.stackoverflow.com/survey/2018 https://insights.stackoverflow

Mads Torgersen, C# lead designer Microsoft Herding Nulls and other C# stories from the future Chapter One Herding nulls Every reference type allows null! Code must be defensive about it C# shares supervisor) : this(name) { this.Enroll(supervisor); } } Person mads = new Person("Mads Torgersen", tonyHoare); extension Student extends Person { // static field static Dictionary supervisor) : this(name) { this.Enroll(supervisor); } } Person mads = new Person("Mads Torgersen", tonyHoare); WriteLine(mads.Supervisor); extension Student extends Person { // static field