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Practice Basic Variables, Input, and Output in C#

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The Challenge

3:28 with James Churchill

In this video, we'll explain the challenge relating to Basic Variables, Input, and Output in C# that you'll be working to complete.

Prerequisites

Note: This practice session relates to a now-retired C# Basics course. The practice is still useful but relates to stage 3 of the updated C# Basics.

Help

If you get stuck on any of the following topics or simply need a refresher, click on a topic in list below to view the associated video in the C# Basics course.

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    [MUSIC] 0:00
    Hi everyone, this is James. 0:04
    In this C# practice session, you'll get a chance to practice declaring and assigning 0:07
    variables, capturing user input and writing output to the console using C#. 0:12
    It reinforces what you learned in stage two of the C# basics course. 0:17
    If you find this practice session too difficult, 0:22
    you might need to review that course. 0:25
    See the teacher's notes for a link. 0:27
    I've attached a workspace to this video. 0:29
    Go ahead and open the workspace or download the project files if you want 0:32
    to use an external editor or IDE like Visual Studio. 0:36
    The Program.cs file contains a single method named main which will contain all 0:46
    of the code for your program. 0:51
    In order to complete this practice session, 0:55
    you'll read through these to do code comments and complete each one. 0:57
    The purpose of this program is to ask the user for their name and 1:05
    their favorite movie. 1:09
    Or book, city, car, food, whatever you'd like. 1:11
    Let's see the completed program in action. 1:16
    We'll compile our program using the mcs command. 1:19
    And run the program using the mono command. 1:22
    The program prompts me for my name. 1:32
    Then my favorite movie. 1:35
    And then, outputs my name and favorite movie to the console. 1:40
    There are four tasks that you'll need to complete in this session. 1:49
    Each task is described in a TODO code comment. 1:52
    Let's review them now. 1:56
    For the first TODO, you need to declare a variable named thing and assign it to 1:57
    a string literal representing the thing that you'll be asking the user for. 2:02
    I'm going to use movie for my thing, but you could use whatever you'd like. 2:06
    For the second TODO, you need to prompt the user for their name and 2:12
    assign their provided value into a string variable named name. 2:16
    For the third TODO, you'll prompt the user again. 2:20
    This time for their favorite thing. 2:23
    You can use string concatenation to combine the thing variable 2:25
    with the string literal, what is your favorite thing? 2:29
    Then assign the user's provided value to a string variable named favorite thing. 2:32
    Then, for the fourth and last TODO, output the user's name and 2:38
    favorite thing to the console. 2:42
    For example, my name is James, and my favorite movie is Toy Story. 2:44
    But you can format the output however you'd like. 2:48
    When writing output to the console, be sure to play around with the difference 2:52
    between the console write and the writeline methods. 2:56
    You'll find each method to be helpful for different situations. 2:59
    Practice is an important part of the learning process. 3:03
    Doing it will help you to retain what you've learned. 3:06
    If you get stuck at any point, see the teacher's notes for hints and links to 3:10
    videos that'll cover what you need to know in order to complete this session. 3:13
    And if you can't quite get it right, don't worry, 3:18
    I'll show you how to complete the TODOs in the next video. 3:21
    Good luck and we'll see you in a bit. 3:25

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