From 8639dcdc42a56b277e44ee7872f4ac8e6a2f7bac Mon Sep 17 00:00:00 2001 From: katiesavage Date: Fri, 6 May 2022 12:12:05 -0700 Subject: [PATCH] Edited wording and added emojis --- 2-csharp/README.md | 70 ++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 58 insertions(+), 12 deletions(-) diff --git a/2-csharp/README.md b/2-csharp/README.md index 6272f2d..bcb06b1 100644 --- a/2-csharp/README.md +++ b/2-csharp/README.md @@ -1,4 +1,4 @@ -# C# Crash Course +# C# Crash Course 🚀 In this C# Crash Course, we'll go over the basics of C# so that you'll be ready to build out exciting web apps! We'll start by going through the key attributes of C#, syntax basics, and introduce you to OOP. In each section, we'll link you to some quick in-browser C# challenges so you can apply these concepts. @@ -25,6 +25,7 @@ A **compiler** converts the code you write into a format that your computer can --- # The basics +## 🌍 Hello World Here's a piece of code that will print "Hello world!" to the console. ```csharp @@ -32,15 +33,23 @@ using System; Console.WriteLine("Hello world!"); ``` + ## Keywords -With C#, you use **keywords** like *using* and *Console*. +With C#, you use keywords like `using` and `Console`. **Keywords** are predefined, reserved identifiers that have special meanings to the compiler. ## Accessing methods -The `. (DOT)` in *Console.WriteLine* allows us to access methods and properties. In this example, **Console** is a type that represents the console window. **WriteLine** is a method of the Console type that prints a line of text to that text console. +The `. (DOT)` in `Console.WriteLine` allows us to access methods and properties. In this example, `Console` is a type that represents the console window. `WriteLine` is a method of the Console type that prints a line of text to that text console. ## Parameters -In this example, we use parentheses pass a string as a parameter to *Console.WriteLine*. +In this example, we use parentheses pass a string as a parameter to `Console.WriteLine`. + +## 🚨 Challenge 1 +Time for your first challenge! + +| # | Challenge | Solution | Duration | What you will learn | More information | +|-| ------------------------------- | ------------------------------- | ----------- | -------------------------------------- | - | +1 | [Hello World Challenge](https://docs.microsoft.com/learn/modules/csharp-write-first/2-exercise-hello-world/?ns-enrollment-type=learningpath&ns-enrollment-id=learn.languages.csharp-first-steps)| N/A | 3 min | case sensitive, strings, comments | [Intro to C# Tutorial](https://docs.microsoft.com/dotnet/csharp/tour-of-csharp/tutorials/hello-world?WT.mc_id=csharpnotebook-35129-website), [C# documentation](https://docs.microsoft.com/dotnet/csharp/) | ## Variables In C#, **variables** allow you to temporarily store a value in memory. In C#, you must declare a variable before using it. @@ -51,6 +60,11 @@ In this example, we created a string called `cSharp`. You can use the var keywor Variable names can contain alphanumeric characters and underscores, but no special characters. They also cannot be keywords. +## 🚨 Challenge 2 +| # | Challenge | Solution | Duration | What you will learn | More information | +|-| ------------------------------- | ------------------------------- | ----------- | -------------------------------------- | - | +2 | [Variables Challenge](https://docs.microsoft.com/learn/modules/csharp-literals-variables/6-challenge )|[Solution](https://docs.microsoft.com/learn/modules/csharp-literals-variables/7-solution)| 5 min | variables, data types, strings, ints, decimals | [String formatting tutorial](https://docs.microsoft.com/learn/modules/csharp-basic-formatting/), [C# documentation](https://docs.microsoft.com/dotnet/csharp/) | + # Syntax cheat sheet ## Semicolons Every statement is ended by a semicolon @@ -66,6 +80,8 @@ Variable names can contain alphanumeric characters and underscores, but no speci C# is case sensitive! For example, a variable "cat" is completely different from a variable "CAT". ```csharp var cat = "meow"; + ``` + ```csharp var CAT = "rawr"; ``` @@ -81,8 +97,28 @@ Variable names can contain alphanumeric characters and underscores, but no speci | ++ | increment | | -- | decrement | +## 🚨 Challenge 3 +| # | Challenge | Solution | Duration | What you will learn | More information | +|-| ------------------------------- | ------------------------------- | ----------- | -------------------------------------- | - | +3 | [Operating on numbers challenge](https://docs.microsoft.com/learn/modules/csharp-basic-operations/5-challenge)|[Solution](https://docs.microsoft.com/learn/modules/csharp-basic-operations/6-solution)| 2 min | ints, decimals | [Number operations tutorial](https://docs.microsoft.com/learn/modules/csharp-basic-operations/), [C# documentation](https://docs.microsoft.com/dotnet/csharp/) | + +## Decision logic +In C#, you can build applications that employ decision-making logic so that your application performs different instructions based on a set of conditions. One way we do this is with an `if` statement. `if` statements are made up of three parts: +* The if keyword +* A Boolean expression between parenthesis () +* A code block defined by curly braces { } + +If there are multiple condition, you can utilize the `else if` and `else` statements. Basically, if the `if` statement fails, these other statements allow you to test against other conditions. +You can imagine this in the context of a rock⛰️-paper📃-scissors✂️ game. Imagine you chose rock⛰️. +`if` your opponent chooses scissors✂️, then you will win +`else if` your opponent also chooses rock⛰️, then you will tie +`else` your opponent chooses paper📃, then you will lose + +Each possible decision your opponent could make leads to a different outcome. + + ## Boolean expressions - We use booleans to compare two or more things. + Booleans are expressions that return either `true` or `false`. They are often used to compare two or more things. | symbol | what it does | | --- | ---------- | | < | less than | @@ -91,6 +127,11 @@ Variable names can contain alphanumeric characters and underscores, but no speci | >= | greater than or equal | | == | equal | | != | not equal | + +## 🚨 Challenge 4 +| # | Challenge | Solution | Duration | What you will learn | More information | +|-| ------------------------------- | ------------------------------- | ----------- | -------------------------------------- | - | +4 | [Decision logic challenge](https://docs.microsoft.com/learn/modules/csharp-if-elseif-else/4-challenge)|[Solution](https://docs.microsoft.com/learn/modules/csharp-if-elseif-else/5-solution)| 2 min | if, else if, else, booleans | [Boolean expressions tutorial](https://docs.microsoft.com/learn/modules/csharp-evaluate-boolean-expressions/1-introduction), [C# documentation](https://docs.microsoft.com/dotnet/csharp/) | --- @@ -104,6 +145,12 @@ Objects inherently have attributes. In C# we call these **properties**. The attr We can also define **methods** which describe what an object can do. For example, you can sell your house. +To summarize these concepts using our house example, +A Class is like a blueprint 📜 +An Object is an instance of this blueprint, or a house 🏠 +The Properties of a house could be the number of doors it has or the color it's painted 🚪 🎨 +A Method of our class is that we can sell our house 💸 + Let's look at an example House class: ```csharp // The namespace declaration provides a way to logically organize your classes @@ -131,7 +178,7 @@ public House(string address, int squareFeet) this.Size = squareFeet; } ``` -When we create an object with **new** this constructor will be called. +When we create an object with `new` this constructor will be called. ```csharp using Classes; @@ -139,15 +186,14 @@ using Classes; var house = new House("123 Candy Cane Lane", 1500); ``` -# Mini Challenges! -Each of these mini challenges is designed so that you can apply C# concepts to mini coding exercises. These challenges are all sourced from Microsoft documentation and will allow you to get coding inside your browser. Easy peasy! +## The .NET Class Library +C# also has built in classes and functionality within the .NET Class Library. The .NET Class Library is a collection of thousands of classes containing tens of thousands of methods. These methods are created by Microsoft and are available for use in your applications. For example, when we called `Console.WriteLine` earlier, we were calling a method from the `System.Console` class. For a more in-depth overview, you can read up on the .NET Class Library in the [.NET documentation](https://docs.microsoft.com/dotnet/standard/class-library-overview). +## 🚨 Challenge 5 | # | Challenge | Solution | Duration | What you will learn | More information | |-| ------------------------------- | ------------------------------- | ----------- | -------------------------------------- | - | -1 | [Hello World](https://docs.microsoft.com/learn/modules/csharp-write-first/2-exercise-hello-world/?ns-enrollment-type=learningpath&ns-enrollment-id=learn.languages.csharp-first-steps)| N/A | 3 min | case sensitive, strings, comments | [Intro to C# Tutorial](https://docs.microsoft.com/dotnet/csharp/tour-of-csharp/tutorials/hello-world?WT.mc_id=csharpnotebook-35129-website), [C# documentation](https://docs.microsoft.com/dotnet/csharp/) | -2 | [Variables](https://docs.microsoft.com/learn/modules/csharp-literals-variables/6-challenge )|[Solution](https://docs.microsoft.com/learn/modules/csharp-literals-variables/7-solution)| 5 min | variables, data types, strings, ints, decimals | [String formatting tutorial](https://docs.microsoft.com/learn/modules/csharp-basic-formatting/), [C# documentation](https://docs.microsoft.com/dotnet/csharp/) | -3 | [Operating on numbers](https://docs.microsoft.com/learn/modules/csharp-basic-operations/5-challenge)|[Solution](https://docs.microsoft.com/learn/modules/csharp-basic-operations/6-solution)| 2 min | ints, decimals | [Number operations tutorial](https://docs.microsoft.com/learn/modules/csharp-basic-operations/), [C# documentation](https://docs.microsoft.com/dotnet/csharp/) | -4 | [Making clean code](https://docs.microsoft.com/learn/modules/csharp-readable-code/5-challenge)|[Solution](https://docs.microsoft.com/learn/modules/csharp-readable-code/6-solution)| 5 min | topics | [C# coding conventions](https://docs.microsoft.com/dotnet/csharp/fundamentals/coding-style/coding-conventions) | [C# documentation](https://docs.microsoft.com/dotnet/csharp/) | +5 | [.NET Class Library challenge](https://docs.microsoft.com/learn/modules/csharp-call-methods/5-challenge)|[Solution](https://docs.microsoft.com/learn/modules/csharp-call-methods/6-solution)| 2 min | ints, decimals | [.NET documentation](https://docs.microsoft.com/dotnet/standard/class-library-overview), [C# documentation](https://docs.microsoft.com/dotnet/csharp/) | + # Bonus and more ways to connect