C# Beyond Basics

Kursusindhold

C# Beyond Basics

C# Beyond Basics

1. Additional Structures & File Handling

What are Lists?Practicing List Declaration List Methods What are Dictionaries?Practicing Dictionaries Reading Files using StreamReader Reading Files using File Methods Writing Files Error Handling Practicing Error Handling

2. Structs & Enumerators

What are Structs?Defining & Using a Structure Practicing Structs Structs with Other Data Structures Struct Methods Correctly Accessing Fields in Struct Methods Practicing Methods Struct Constructors Practicing Constructors Enumerators Practicing Enumerator

3. Introduction to Object-Oriented Programming (OOP)

What is Object-Oriented Programming?Defining Classes Practice: Creating Classes Class Objects Class Objects vs Struct Objects Practice: Objects Class Methods Practice: Methods Class Constructors Practice: Constructors

4. OOP Essentials

Derived Classes Derived Classes Practice Common Access Modifiers Access Modifiers Practice The `static` Keyword Practicing `static` Keyword Method Overloading Method Overloading Practice

5. OOP Principles

What are the Principles of OOP?Inheritance Practicing Inheritance Polymorphism Practicing Polymorphism Encapsulation Encapsulation Practice Abstraction Abstraction Practice What's Next?

Practicing Methods

The code contains a struct called Cypher which basically represents a kind of Caesar cipher.

Read the code and fill in the blanks to make sure it works properly. The following is how the final program is supposed to be:

setText method converts the passed text into encoded text and stores it into the field text. This method takes one string argument called text, and the method does not return any value;
rawText returns the text field content. This method takes no arguments;
decodedText decodes the text field content and returns the result. This method also doesn't take any arguments.

index.cs


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using System;

struct Cypher
{
    public string text;

    ___
    {
        string encodedText = "";

        foreach(char chr in text)
            encodedText += (char) (chr + 7);

        ___ = encodedText;
    }

    public string rawText()
    {
        ___
    }

    ___
    {
        string decodedText = "";

        foreach (char chr in this.text)
            decodedText += (char)(chr - 7);

        ___
    }
}

class ConsoleApp
{
    static void Main(string[] args)
    {
        Cypher text1 = new Cypher();

        text1.setText("This is an example sentence.");

        Console.WriteLine(text1.rawText());
        Console.WriteLine(text1.decodedText());
    }
}

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Sektion 2. Kapitel 7

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Kursusindhold

C# Beyond Basics

C# Beyond Basics

1. Additional Structures & File Handling

What are Lists?Practicing List Declaration List Methods What are Dictionaries?Practicing Dictionaries Reading Files using StreamReader Reading Files using File Methods Writing Files Error Handling Practicing Error Handling

2. Structs & Enumerators

What are Structs?Defining & Using a Structure Practicing Structs Structs with Other Data Structures Struct Methods Correctly Accessing Fields in Struct Methods Practicing Methods Struct Constructors Practicing Constructors Enumerators Practicing Enumerator

3. Introduction to Object-Oriented Programming (OOP)

What is Object-Oriented Programming?Defining Classes Practice: Creating Classes Class Objects Class Objects vs Struct Objects Practice: Objects Class Methods Practice: Methods Class Constructors Practice: Constructors

4. OOP Essentials

Derived Classes Derived Classes Practice Common Access Modifiers Access Modifiers Practice The `static` Keyword Practicing `static` Keyword Method Overloading Method Overloading Practice

5. OOP Principles

What are the Principles of OOP?Inheritance Practicing Inheritance Polymorphism Practicing Polymorphism Encapsulation Encapsulation Practice Abstraction Abstraction Practice What's Next?

Practicing Methods

The code contains a struct called Cypher which basically represents a kind of Caesar cipher.

Read the code and fill in the blanks to make sure it works properly. The following is how the final program is supposed to be:

setText method converts the passed text into encoded text and stores it into the field text. This method takes one string argument called text, and the method does not return any value;
rawText returns the text field content. This method takes no arguments;
decodedText decodes the text field content and returns the result. This method also doesn't take any arguments.

index.cs


              1234567891011121314151617181920212223242526272829303132333435363738394041424344
            
using System;

struct Cypher
{
    public string text;

    ___
    {
        string encodedText = "";

        foreach(char chr in text)
            encodedText += (char) (chr + 7);

        ___ = encodedText;
    }

    public string rawText()
    {
        ___
    }

    ___
    {
        string decodedText = "";

        foreach (char chr in this.text)
            decodedText += (char)(chr - 7);

        ___
    }
}

class ConsoleApp
{
    static void Main(string[] args)
    {
        Cypher text1 = new Cypher();

        text1.setText("This is an example sentence.");

        Console.WriteLine(text1.rawText());
        Console.WriteLine(text1.decodedText());
    }
}

Var alt klart?

Tak for dine kommentarer!

Sektion 2. Kapitel 7

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