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C# Basics
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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
Type Casting Practice

Store the value number in the variables n1 and n2. Use explicit type casting if needed.

cs

main

copy

              
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using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            float number = 14.47f;

            // Change code below this line
            long n1 = ___;
            double n2 = ___;
            // Change code above this line

            Console.WriteLine(n1);
            Console.WriteLine(n2);
        }
    }
}

Use type casting only on the long variable.

cs

main

copy

              
1234567891011121314151617181920

            
using System;

namespace ConsoleApp
{
    internal class Program
    {
        static void Main(string[] args)
        {
            float number = 14.47f;

            // Change code below this line
            long n1 = (long) number;
            double n2 = number;
            // Change code above this line

            Console.WriteLine(n1);
            Console.WriteLine(n2);
        }
    }
}

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Avsnitt 2. Kapitel 12
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