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C# Basics
course content

Course Content

C# Basics

C# Basics

1. Getting Started
Why C#?C# SyntaxDisplaying OutputChallenge: Outputting a TriangleCommentsChallenge: CommentsVariablesIdentifiersChallenge: Variable DeclarationBasic Operators & ExpressionsChallenge: Operators
2. Dealing with Data Types
Integer Data TypesChallenge: Declaring Explicitly Typed VariablesFloating-Point and DoubleBooleansCharacterStringStrings ChallengeBasic String FormattingChallenge: String FormattingDeclaring ConstantsBasic Type CastingType Casting PracticeBasic Type ConversionBasic Coding Practice
3. Control Structures
Comparison OperatorsLogical OperatorsChallenge: OperatorsOrder of OperationsIf StatementChallenge: if Conditionelse KeywordChallenge: else Keywordif-else ChainChallenge: if, else-if, elseswitch StatementChallenge: Switch
4. Loops
for LoopChallenge: for Loopwhile Loopdo-while LoopChallenge: do-while Loopbreak Statementcontinue StatementChallenge: break and continue
5. Arrays
What are Arrays?Challenge: Array DeclarationIndexingChallenge: IndexingMulti-Dimensional ArraysChallenge: Multi-Dimensional ArraysLooping through ArraysChallenge: Array Loops
6. Methods
What are Methods?Creating and Calling MethodsChallenge: Methods CreationMethod ParametersChallenge: Method with ParametersMethod Return ValuesChallenge: Return ValuesLocal & Global ScopesChallenge: ScopesWhat's Next?

book
Challenge: Comments

The following program prints numbers from 1 to 10. Comment out the lines that print odd numbers.

Note

Use single-line comments to solve this task.

cs

main

copy

              
12345678910111213141516171819

            
namespace TestConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            System.Console.WriteLine(1);
            System.Console.WriteLine(2);
            System.Console.WriteLine(3);
            System.Console.WriteLine(4);
            System.Console.WriteLine(5);
            System.Console.WriteLine(6);
            System.Console.WriteLine(7);
            System.Console.WriteLine(8);
            System.Console.WriteLine(9);
            System.Console.WriteLine(10);
        }
    }
}
  1. Single-Line comments can be added using double-slash (//);
  2. Even numbers are those which can be divided into two equal parts or in other words those numbers which are divisible by 2. For-example: 2, 4, 6 etc. Odd numbers are the opposite of even numbers for-example: 1, 3, 5 etc.
cs

main

copy

              
12345678910111213141516171819

            
namespace TestConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // System.Console.WriteLine(1);
            System.Console.WriteLine(2);
            // System.Console.WriteLine(3);
            System.Console.WriteLine(4);
            // System.Console.WriteLine(5);
            System.Console.WriteLine(6);
            // System.Console.WriteLine(7);
            System.Console.WriteLine(8);
            // System.Console.WriteLine(9);
            System.Console.WriteLine(10);
        }
    }
}

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SectionΒ 1. ChapterΒ 6
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