How to return string to a function; C#

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Hello, i am working on a training console programme and right now i am trying to get a method to return a string from the Main Method. Like this:

C#

Method... {

   if (s = "string") {
       do that;
   }

}

C#

public static void Main(string[], args) {


       Console.Write("write something: ") // Types in "string"

       s = Console.readLine();


}

What I have tried:

Searching a bunch online. It is really hard to know what to search for if you dont really know how/where/what to search for. I have also tried to ask Programmers online, but its never free...

Posted 9-Apr-18 8:40am

Member 13770588

Updated 9-Apr-18 9:38am

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2 solutions

Solution 2

Quote:
now i am trying to get a method to return a string from the Main Method.

main returning a string does not exist. All what main can return is an integer and that integer is not for you, it is for the OS.

Really not clear what you want to do with that.

Posted 9-Apr-18 9:39am

Patrice T

Comments

Afzaal Ahmad Zeeshan 9-Apr-18 15:44pm

In C# it can return void too, and the fun part is that now it can return Task and Task<T> too, due to the support for asynchronous main functions—See Solution 1.

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Afzaal Ahmad Zeeshan · Accepted Answer · 2018-04-09T09:04:00

A main function in C# can only return either int, or void type, nothing else. You cannot force it to return anything other than that, because of the legacy stuff—try reading why C or C++ programs start with int main() { }.

That said, in your code, you are not even trying to return anything. Instead, you are capturing input. Console.ReadLine() is used to capture the input and then process, such as the one you are doing—if(s = "string"). Now, to return something you need to change the return type of the function and you need to use the return keyword to return a value. You are not doing that anywhere. Any other function that returns a string would be like this,

C#

public static string Greetings() {
    Console.WriteLine("Enter your name: ");
    string name = Console.ReadLine();

    // returns the string.
    return "Hello, " + name + "!";
}

So, I would recommend going through C# documentation a bit more so that you can understand how this works. :-)

Main() Return Values (C# Programming Guide) | Microsoft Docs[^]