C#•3mo ago

✅ how to start

help

41 Replies

Crunchy•3mo ago

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

Crunchy•3mo ago

i have both of these installed

reflectronic•3mo ago

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

Crunchy•3mo ago

SO i need to use community version?

reflectronic•3mo 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•3mo ago

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

Crunchy•3mo ago

im switching to python to cs this is much more complicated

CoRoys•3mo ago

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

reflectronic•3mo ago

there is no command line in the linked directions

Crunchy•3mo ago

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

Crunchy•3mo ago

why is this yellow?

Crunchy•3mo ago

CoRoys•3mo 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

}

Crunchy•3mo ago

heres another way i found instead of string i used int

CoRoys•3mo 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

Crunchy•3mo ago

i see

Crunchy•3mo ago

whats the point in string? ageInput

CoRoys•3mo ago

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

Crunchy•3mo ago

CoRoys•3mo 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•3mo 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

Crunchy•3mo ago

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

CoRoys•3mo ago

This question can be answered by a quick Google search

Crunchy•3mo ago

i did

Crunchy•3mo ago

ill try this

CoRoys•3mo ago

You don't wanna replace though

Salman•3mo 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•3mo 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•3mo ago

better follow the official guide for more

Crunchy•3mo ago

i founda goodf method i like

Crunchy•3mo ago

but anyways thanks for the help ill go watch youtube videos

reflectronic•3mo ago

$helloworld may help

MODiX•3mo 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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