Course Content

C# Basics

1. Getting Started

Why C#?C# Syntax Displaying Output Challenge: Outputting a Triangle Comments Challenge: Comments Variables Identifiers Challenge: Variable Declaration Basic Operators & Expressions Challenge: Operators

2. Dealing with Data Types

Integer Data Types Declaring Explicitly Typed Variables Floating-Point and Double Booleans Character String Strings Challenge Basic String Formatting String Formatting Practice Declaring Constants Basic Type Casting Type Casting Practice Basic Type Conversion Basic Coding Practice

3. Control Structures

Comparison Operators Logical Operators Operators Challenge Order of Operations if statement if-condition Challenge else Keyword else Keyword Practice if-else Chain Task (if, else-if, else)switch Statement Practicing Switch

4. Loops

For Loop Practicing For Loop While Loop Do-While Loop Practicing Do-While Loop break statement continue statement Practicing break and continue

5. Arrays

What are Arrays?Practicing Array Declaration Indexing Indexing Practice Multi-Dimensional Arrays Practicing Multi-Dimensional Arrays Looping through Arrays Array Loops Challenge

6. Methods

What are Methods?Creating and Calling Methods Methods Creation Practice Method Parameters Practicing Method with Parameters Method Return Values Practicing Return Values Local & Global Scopes Practicing Scopes What's Next?

C# Basics

While Loop

A while loop is similar to a for-loop, however, it is used when we need to execute a block of code repeatedly based on a condition. The syntax of a while-loop is simpler than that of a for-loop:

Example:

main.cs

The following diagram shows the execution process of a while loop:

Although the while loop may seem very similar to the for-loop at first, In more advanced levels of programming the difference becomes apparent. We might explore the usage of different kinds of loops in the Arrays section.

Tip: We can write true as the condition of a while-loop to create an infinite loop:

main.cs

How many iterations will the following loop have?

Select the correct answer

Everything was clear?

Section 4. Chapter 3