C#•4mo ago

✅ how to start

help

41 Replies

CrunchyOP•4mo ago

in VSC im trying to make a symbol thing to start out wiuth i get this issue when clicking f5

CrunchyOP•4mo ago

i have both of these installed

reflectronic•4mo ago

you need to make a project you can't just have a .cs file

CrunchyOP•4mo ago

SO i need to use community version?

reflectronic•4mo ago

https://code.visualstudio.com/docs/csharp/get-started

Get started with C# and .NET in Visual Studio Code

Getting Started with C# and .NET Development in Visual Studio Code

reflectronic•4mo ago

the "Create a Hello World app" will teach you what you need to do to make it work

CrunchyOP•4mo ago

im switching to python to cs this is much more complicated

CoRoys•4mo ago

Download VS Studio and create a project from a template No need to pressure yourself into the dotnet command line right now

reflectronic•4mo ago

there is no command line in the linked directions

CrunchyOP•4mo ago

I figured out ,dot net project got hello world line working

CrunchyOP•4mo ago

why is this yellow?

CrunchyOP•4mo ago

CoRoys•4mo ago

C# supports nullability analysis That means you'll get feedback on where Intellisense (i.e code analysis) thinks a null reference exception might happen You can still compile and build, but the code analysis is telling you that you should handle the case when ageInput is null

string? ageInput = Console.ReadLine();

if(ageInput is null)
{

// handle no age input

}

string? ageInput = Console.ReadLine();

if(ageInput is null)
{

// handle no age input

}

CrunchyOP•4mo ago

heres another way i found instead of string i used int

CoRoys•4mo ago

This will just output zero if no age was found You should convert the string to an int after you've checked that the string is not null in the first place

CrunchyOP•4mo ago

i see

CrunchyOP•4mo ago

whats the point in string? ageInput

CoRoys•4mo ago

The ? next to string simply converts it to a nullable string

CrunchyOP•4mo ago

CoRoys•4mo ago

You're basically matching your variable type with the return type of the ReadLine function, hence disabling the warning Next time just use var

Salman•4mo ago

instead of Convert functions you can use this as well:

c#
int age = int.Parse(Console.ReadLine());

c#
int age = int.Parse(Console.ReadLine());

if there's a possiblity of null you can also use int.TryParse(value,out int output) , for more info refer to the official documentation this is the modern approach

CrunchyOP•4mo ago

also In Cs how to i do print line for multiple lines i know in python we used \n\n

CoRoys•4mo ago

This question can be answered by a quick Google search

CrunchyOP•4mo ago

i did

CrunchyOP•4mo ago

ill try this

CoRoys•4mo ago

You don't wanna replace though

Salman•4mo ago

Console.WriteLine("hey");

c#
string x  = "some text \n new line will start from here \n and another line" ;

c#
string x  = "some text \n new line will start from here \n and another line" ;

$helloworld

MODiX•4mo ago

Interactive course https://learn.microsoft.com/en-us/training/paths/get-started-c-sharp-part-1/ Videos https://dotnet.microsoft.com/learn/videos

Salman•4mo ago

better follow the official guide for more

CrunchyOP•4mo ago

i founda goodf method i like

CrunchyOP•4mo ago

but anyways thanks for the help ill go watch youtube videos

reflectronic•4mo ago

$helloworld may help

MODiX•4mo ago

Interactive course https://learn.microsoft.com/en-us/training/paths/get-started-c-sharp-part-1/ Videos https://dotnet.microsoft.com/learn/videos

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