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C# C# Basics If Statements "else if" and "else" Statements

Posted by Ben Perring
Ben Perring
2,383 Points

why does this error occur in my code? as far as i can see it should run

i am pretty sure that this is accurate and my hunch is that the compiler doesn't like something in the else statement.

Program.cs 
using System;

class Program
{

    static string CheckSpeed(double speed)
    {
        if (speed > 65)
        {
            Console.WriteLine("too fast");
        }
        else if (speed < 45)
        {
            Console.WriteLine("too slow");
        }
        else
        {
            Console.WriteLine("speed OK");
        }
    }

    static void Main(string[] args)
    {
        // This should print "too slow".
        Console.WriteLine(CheckSpeed(44));
        // This should print "too fast".
        Console.WriteLine(CheckSpeed(88));
        // This should print "speed OK".
        Console.WriteLine(CheckSpeed(55));
    }

}

1 Answer

Steven Parker
Steven Parker
231,198 Points
Steven Parker
Steven Parker
231,198 Points

The "CheckSpeed" method needs to return a string value, it shouldn't call "WriteLine" directly.

For example:

        if (speed > 65)
        {
            return "too fast";
        }