Vaskaran Sarcar - Test Your Skills in C# Programming: Review and Analyze Important Features of C#

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I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the seashore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.

You can find similar quotes from other great personalities too. For now, let me give you one more example: Malcom Gladwell in his book Outliers (Little, Brown, and Company) talked about the 10,000-hour rule. This rule says that the key to achieving world-class expertise in any skill, is, to a large extent, a matter of practicing the correct way, for a total of around 10,000 hours. So, even though we may claim that we know something very well, we actually know very little. Learning is a continuous process, and there is no end to it. This is why you can surely assume that if anyone makes a 1,000-page book, that also may not be sufficient to cover all the topics and features in C#.

But there is something called effective learning. It teaches you how to learn fast to serve your need. Have you heard of the Pareto principle, or 80-20 rule? This rule simply states that 80 percent of outcomes come from 20 percent of all causes. This is useful in programming too. When you learn the fundamental and most important features of a programming language, you will be confident in using it. Though you may not know every aspect of a programming language, you will know the common constructs and widely used features. This book is for those who acknowledge this fact. It will help you to review your understanding of the core constructs and features of C# using 15 chapters that have 430+ questions (170+ theoretical, and 260+ programming) and answers with lots of explanations. I tried to keep a balance between the most recent features and commonly used features in C#.

The target readers for this book are those who have completed a basic tutorial, a book, or a course on C# but want to prepare themselves for an examination or a job interview. I assume that you are familiar with the basic language constructs in C# and have an idea about the pure object-oriented concepts such as polymorphism, inheritance, abstraction, encapsulation, and, most importantly, how to compile or run a C# application in Visual Studio. This book does not invest time in easily available topics, such as how to install Visual Studio on your system or how to write a Hello World program in C#, and so forth. The code examples and questions and answers (Q&As) are straightforward. I believe that by analyzing these Q&As, you can evaluate your understanding of C#. These discussions will make your future learning easier and enjoyable, but most importantly, they will make you confident about using C#.