Trying to learn c#

[eike93]

So i'm trying to learn c#, but i'm having problems learning it by myself. So i was hoping anyone here would like to jump on teamspeak and help me ? 

[Mira Yurizaki]

What are you having trouble with?

[eike93]

1 minute ago, M.Yurizaki said:

What are you having trouble with?

So i learn easier by doing and i'm having a problem remembering everything, so i guess i'm looking for a cheat sheet with the basics.

 

Also the book i was recommended totally skipped int and how to set it up

[squirrl]

On 07/12/2016 at 7:12 PM, eike93 said:

So i learn easier by doing and i'm having a problem remembering everything, so i guess i'm looking for a cheat sheet with the basics.

 

Also the book i was recommended totally skipped int and how to set it up

 

 

 

 

Here's your cheatsheet:

https://en.wikipedia.org/wiki/C_Sharp_syntax

 

as for int:

int x; // x == 0

int x = 1; // x == 1

[vorticalbox]

41 minutes ago, eike93 said:

So i learn easier by doing and i'm having a problem remembering everything, so i guess i'm looking for a cheat sheet with the basics.

 

Also the book i was recommended totally skipped int and how to set it up

Microsoft has a documentation aplenty online. C# documentation is one of the best of any language.

[eike93]

Love you guys 

[madknight3]

2 hours ago, squirrl said:

as for int:

int x; // x == 0

int x = 1; // x == 1

Actually it's not that simple.

 

Local variables aren't automatically initialized with a default value. So int x; will give you a compilation error if you try to use it before it's assigned a value.

// This doesn't work. It gives you a compilation error
static void Main(string[] args)
{
    int i;
    bool b = (i == 0);
}

// This works
static void Main(string[] args)
{
    int i = 0;
    bool b = (i == 0);
}

// This works too
static void Main(string[] args)
{
    int i;
    i = 0;
    bool b = (i == 0);
}

Fields/properties are automatically initialized with a default value when the class is instantiated.

// This works
public class Test
{
    private int i; // defaults to zero
    private double d { get; set; } // also defaults to zero
  
    public Test()
    {
        bool b = (i == 0);
    }
}

 

[Gachr]

Most people, like me, remember things like that by doing. So just think of a simple thing you'd do, figure the algorithm out, and if you don't know something, just google it out!

If you are already familiar with the concepts, and just want to refresh your syntax knowledge, I recommend you Derek's videos:

 

[squirrl]

On 07/12/2016 at 10:56 PM, madknight3 said:

Actually it's not that simple.

 

Local variables aren't automatically initialized with a default value. So int x; will give you a compilation error if you try to use it before it's assigned a value.

Fields/properties are automatically initialized with a default value when the class is instantiated.

 

1

Right! Most of my C# recently has been only from within classes, so I overlooked this!

[PirateFish]

I really think you just need to take your time. Accept that it's not easy to learn a programming language.

 

Watch some YouTube videos (there are tons), and mess around in Visual Studio as much as you can.

 

Accept that you might not understand everything and don't pretend you do. Come back to certain topics later, with a broader knowledge it will be easier to understand more deeply.

 

And programming isn't so much about remembering. Focus on understanding topics, and get good at searching for help on Google and Stackoverflow.

[AlTech]

On ‎12‎/‎8‎/‎2016 at 6:56 AM, madknight3 said:

Actually it's not that simple.

 

Local variables aren't automatically initialized with a default value. So int x; will give you a compilation error if you try to use it before it's assigned a value.

// This doesn't work. It gives you a compilation error
static void Main(string[] args)
{
    int i;
    bool b = (i == 0);
}

// This works
static void Main(string[] args)
{
    int i = 0;
    bool b = (i == 0);
}

// This works too
static void Main(string[] args)
{
    int i;
    i = 0;
    bool b = (i == 0);
}

Fields/properties are automatically initialized with a default value when the class is instantiated.

// This works
public class Test
{
    private int i; // defaults to zero
    private double d { get; set; } // also defaults to zero
  
    public Test()
    {
        bool b = (i == 0);
    }
}

 

Visual Studio won't throw an error though. It'll just assign a generic value of 0.

[madknight3]

1 hour ago, AluminiumTech said:

Visual Studio won't throw an error though. It'll just assign a generic value of 0.

Using an unassigned local variable does throw an error in Visual Studio for me.

 

If the variable isn't used, it'll display a warning, but it'll compile and run fine (by default, you can have Visual Studio treat warnings as errors if you choose).