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C# C# Basics Numbers Numeric Types and Casting

Posted by Scott George
Scott George
19,060 Points

Practicing type conversion

Hi guys! Seems I'm only stuck on a small detail, I've gone over the video again, but not getting it yet. Thanks

Program.cs 
using System;

class Program
{

    // YOUR CODE HERE: Define a Divide method!
    static double divide(firstNum, secondNum){
int wholeNumber = (int)5.0;
double fractionalNumber = 2.0;
Console.WriteLine(wholeNumber.GetType());
Console.WriteLine(fractionalNumber.GetType());
        return;
    }
    static void Main(string[] args)

    {
        // This should print "2.5".
        Console.WriteLine(Divide(5, 2));
        // This should print "3.3333333333..."
        // (Or a value close to that, since it can't be
        // infinitely precise.)
        Console.WriteLine(Divide(10, 3));
    }

}
Scott George
Scott George
19,060 Points

Forgot to add the error I'm getting. "error CS1001: Identifier expected"

1 Answer

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

It looks like there are a few issues:

  • the parameter types must be declared with their names ("(int firstNum, int secondNum)")
  • the method name should be "Divide" (with a capital "D") instead of "divide"
  • the parameters should be used in the calculation
  • you won't need to create any new variables
  • the final result must be return‍ed
  • you won't need to output ("WriteLine") anything
Scott George
Scott George
19,060 Points

Hey Steven, just got to update my code

using System;

class Program {

// YOUR CODE HERE: Define a Divide method!
static double Divide(int param1 2.5 , int param2 2.0)
{
    int param1 = (int) 2.5;
    double param2 = 2.0;
    return(Divide);
}

static void Main(string[] args)
{
    // This should print "2.5".
    Console.WriteLine(Divide(5, 2));
    // This should print "3.3333333333..."
    // (Or a value close to that, since it can't be
    // infinitely precise.)
    Console.WriteLine(Divide(10, 3));
}

}

The only error I'm getting now is " Program.cs(7,37): error CS1003: Syntax error, ',' expected [/workdir/workspace.csproj] Program.cs(7,54): error CS1003: Syntax error, ',' expected [/workdir/workspace.csproj] "

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

Several issues still need to be addressed, but now there's some new causes:

  • the parameter declarations should only have types and names (like "(int firstNum, int secondNum)")
  • the parameters should still be used in the calculation
  • you won't need to create any new variables (particularly not ones with the same names as the parameters)
  • the final calculation result must be return‍ed (not the method itself)

You may also want to review method syntax in the video before trying again.