Book Image

Programming in C#: Exam 70-483 (MCSD) Guide

By : Simaranjit Singh Bhalla, SrinivasMadhav Gorthi
Book Image

Programming in C#: Exam 70-483 (MCSD) Guide

By: Simaranjit Singh Bhalla, SrinivasMadhav Gorthi

Overview of this book

Programming in C# is a certification from Microsoft that measures the ability of developers to use the power of C# in decision making and creating business logic. This book is a certification guide that equips you with the skills that you need to crack this exam and promote your problem-solving acumen with C#. The book has been designed as preparation material for the Microsoft specialization exam in C#. It contains examples spanning the main focus areas of the certification exam, such as debugging and securing applications, and managing an application's code base, among others. This book will be full of scenarios that demand decision-making skills and require a thorough knowledge of C# concepts. You will learn how to develop business logic for your application types in C#. This book is exam-oriented, considering all the patterns for Microsoft certifications and practical solutions to challenges from Microsoft-certified authors. By the time you've finished this book, you will have had sufficient practice solving real-world application development problems with C# and will be able to carry your newly-learned skills to crack the Microsoft certification exam to level up your career.
Table of Contents (22 chapters)
17
Mock Test 1
18
Mock Test 2
19
Mock Test 3

Managing the Object Life Cycle

C# is a managed language. Unlike other languages, such as C++, where we need to explicitly manage memory cleanup, in C# we do not need to worry about it. The garbage collector in the .NET Framework manages the allocation and release of memory for us.

The garbage collector ensures that, as long as we use managed types, that is, value and reference type variables, then we don't have to explicitly destroy an object in order to free its memory. However, as we discovered in Chapter 8, Creating and Using Types in C#, C# also gives us the freedom to utilize the capabilities of pointer object types in it. In C#, we must declare that code using the unsafe syntax. Apart from that, for variables declared in unsafe code, we also need to manage the release of memory.

In this chapter, as well as looking into memory management for unsafe code we will delve...