✅ how to start

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Deleted userOP•7/28/24, 6:38 PM

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

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Deleted userOP•7/28/24, 6:39 PM

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Deleted userOP•7/28/24, 6:39 PM

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Deleted userOP•7/28/24, 6:40 PM

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Deleted userOP•7/28/24, 6:40 PM

i have both of these installed

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reflectronic•7/28/24, 6:43 PM

you need to make a project

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reflectronic•7/28/24, 6:43 PM

you can't just have a .cs file

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Deleted userOP•7/28/24, 6:43 PM

SO i need to use community version?

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reflectronic•7/28/24, 6:43 PM

no

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reflectronic•7/28/24, 6:43 PM

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

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reflectronic•7/28/24, 6:44 PM

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

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Deleted userOP•7/28/24, 6:44 PM

im switching to python to cs

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Deleted userOP•7/28/24, 6:44 PM

this is much more complicated

DDeleted user im switching to python to cs

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CoRoys•7/28/24, 6:50 PM

Download VS Studio and create a project from a template

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CoRoys•7/28/24, 6:50 PM

No need to pressure yourself into the dotnet command line right now

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reflectronic•7/28/24, 6:51 PM

there is no command line in the linked directions

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Deleted userOP•7/28/24, 6:51 PM

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

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Deleted userOP•7/28/24, 6:51 PM

\

CCoRoys Download VS Studio and create a project from a template

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Deleted userOP•7/28/24, 6:59 PM

why is this yellow?

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Deleted userOP•7/28/24, 6:59 PM

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CoRoys•7/28/24, 7:00 PM

C# supports nullability analysis

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CoRoys•7/28/24, 7:02 PM

That means you'll get feedback on where Intellisense (i.e code analysis) thinks a null reference exception might happen

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CoRoys•7/28/24, 7:04 PM

You can still compile and build, but the code analysis is telling you that you should handle the case when

ageInput

ageInput

ageInput

ageInput is null

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CoRoys•7/28/24, 7:05 PM

string? ageInput = Console.ReadLine();

if(ageInput is null)
{

// handle no age input

}

string? ageInput = Console.ReadLine();

if(ageInput is null)
{

// handle no age input

}

string? ageInput = Console.ReadLine();

if(ageInput is null)
{

// handle no age input

}

string? ageInput = Console.ReadLine();

if(ageInput is null)
{

// handle no age input

}

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Deleted userOP•7/28/24, 7:05 PM

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Deleted userOP•7/28/24, 7:05 PM

heres another way i found

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Deleted userOP•7/28/24, 7:06 PM

instead of string i used int

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CoRoys•7/28/24, 7:06 PM

This will just output zero if no age was found

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CoRoys•7/28/24, 7:06 PM

You should convert the string to an int after you've checked that the string is not null in the first place

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Deleted userOP•7/28/24, 7:07 PM

i see

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Deleted userOP•7/28/24, 7:08 PM

whats the point in

string? ageInput

string? ageInput

string? ageInput

string? ageInput

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CoRoys•7/28/24, 7:11 PM

The

next to

string

string

simply converts it to a nullable string

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Deleted userOP•7/28/24, 7:11 PM

ah

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CoRoys•7/28/24, 7:11 PM

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CoRoys•7/28/24, 7:11 PM

You're basically matching your variable type with the return type of the ReadLine function, hence disabling the warning

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CoRoys•7/28/24, 7:11 PM

Next time just use

var

var

var

var

DDeleted user Click to see attachment

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Salman•7/28/24, 7:12 PM

instead of Convert functions you can use this as well:

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

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

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

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

if there's a possiblity of

null

null

you can also use

int.TryParse(value,out int output)

int.TryParse(value,out int output)

int.TryParse(value,out int output)

int.TryParse(value,out int output) , for more info refer to the official documentation

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Salman•7/28/24, 7:12 PM

this is the modern approach

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Deleted userOP•7/28/24, 7:13 PM

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

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

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CoRoys•7/28/24, 7:15 PM

This question can be answered by a quick Google search

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Deleted userOP•7/28/24, 7:16 PM

i did

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Deleted userOP•7/28/24, 7:16 PM

ill try this

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CoRoys•7/28/24, 7:16 PM

You don't wanna replace though

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Salman•7/28/24, 7:16 PM

Console.WriteLine("hey");

Console.WriteLine("hey");

Console.WriteLine("hey");

Console.WriteLine("hey");

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Salman•7/28/24, 7:18 PM

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" ;

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" ;

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Salman•7/28/24, 7:18 PM

$helloworld

SSalman $helloworld

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MODiX•7/28/24, 7:18 PM

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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Salman•7/28/24, 7:18 PM

better follow the official guide for more

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Deleted userOP•7/28/24, 7:20 PM

i founda goodf method i like

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Deleted userOP•7/28/24, 7:20 PM