start building apps with C# - Build something great…fast! - XAML, Label
Head First C Sharp: A Learner’s Guide to Real-World Programming with C Sharp and .NET (Andrew Stellman(著)、Jennifer Greene(著)、O’Reilly Media)のChapter 1(start building apps with C# - Build something great…fast!)、p.31(Exercise)の解答を求めてみる。