C# Basics

Course Content

C# Basics

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

3. Control Structures

Comparison Operators Logical Operators Challenge: Operators Order of Operations If Statement Challenge: if Condition else Keyword Challenge: else Keyword if-else Chain Challenge: if, else-if, else switch Statement Challenge: Switch

4. Loops

for Loop Challenge: for Loop while Loop do-while Loop Challenge: do-while Loop break Statement continue Statement Challenge: break and continue

5. Arrays

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

6. Methods

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

Challenge: Variable Declaration

Complete the code by declaring the variables value_1 and value_2 having values 10 and 20 respectively.

main


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namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Write code below this line
            
            // Write code above this line


            System.Console.WriteLine("Value 1: " + value_1);
            System.Console.WriteLine("Value 2: " + value_2);
        }
    }
}

Use the var keyword and the assignment operator (=) for variable declaration.

main


              1234567891011121314151617
            
namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Write code below this line
            var value_1 = 10;
            var value_2 = 20;
            // Write code above this line


            System.Console.WriteLine("Value 1: " + value_1);
            System.Console.WriteLine("Value 2: " + value_2);
        }
    }
}

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Section 1. Chapter 9

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