FAQ: Method Output - Return Errors

This community-built FAQ covers the “Return Errors” exercise from the lesson “Method Output”.

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FAQs on the exercise Return Errors

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How come
bool answer = true;
return answer;
works but
return bool answer = true;
doesn’t?

5 Likes

I was wondering the same.

Also, heads up for anyone running into the same issue: sometimes an error persists even after correcting it - meaning the console still throws an error message. You need to reload the whole page in that case.

1 Like

■■■■ guys I’m still stuck with that bool I can’t seem to figure out why I still have an error

1 Like

Hi did u figure it out ? :smiley:

using System;

namespace ReturnErrors
{
class Program
{
static void Main(string args)
{
Console.WriteLine(DecoratePlanet(“Mars”));
Console.WriteLine(“Is Pluto really a dwarf…?”);
Console.WriteLine(IsPlutoADwarf(true));
Console.WriteLine(“Then how many planets are there in the galaxy…?”);
Console.WriteLine(CountThePlanets());
}

static string DecoratePlanet(string planet)
{
   return $"*..*..* Welcome to {planet} *..*..*";
}

static bool IsPlutoADwarf(bool answer)
{
        return true;
}

static int CountThePlanets()
{
  return Convert.ToInt32(Console.ReadLine());
}
}

}

Please fix this error CC. I love this website for making my life simpler in learning new code! Error Below (starts after step 3 and will not properly compile step 4 without this error persisting):

" Program.cs(23,14): error CS1525: Invalid expression term ‘bool’ [/home/ccuser/workspace/csharp-return-errors/c-sharp-hello-world-run-some-c-sharp.csproj]
Program.cs(23,19): error CS1002: ; expected [/home/ccuser/workspace/csharp-return-errors/c-sharp-hello-world-run-some-c-sharp.csproj]

The build failed. Fix the build errors and run again. "

My code:

" using System;

namespace ReturnErrors
{
class Program
{
static void Main(string args)
{
Console.WriteLine(DecoratePlanet(“Mars”));
Console.WriteLine(“Is Pluto really a dwarf…?”);
Console.WriteLine(IsPlutoADwarf());
Console.WriteLine(“Then how many planets are there in the galaxy…?”);
Console.WriteLine(CountThePlanets());
}

static string DecoratePlanet(string planet)
{
   return $"*..*..* Welcome to {planet} *..*..*";
}

static bool IsPlutoADwarf()
{
  return bool answer = true;
}

static string CountThePlanets()
{
  return "8 planets, usually";
}
}

}
"

{
class Program
{
static void Main(string args)
{
Console.WriteLine(DecoratePlanet(“Mars”));
Console.WriteLine(“Is Pluto really a dwarf…?”);
Console.WriteLine(IsPlutoADwarf());
Console.WriteLine(“Then how many planets are there in the galaxy…?”);
Console.WriteLine(CountThePlanets());
}

static string DecoratePlanet(string planet)
{
   return $"*..*..* Welcome to {planet} *..*..*";
}

static bool IsPlutoADwarf()
{
  return true;
}

static int CountThePlanets()
{
  
  return 8;
}
}

}

static string DecoratePlanet(string planet)
{
return $"…* Welcome to {planet} …*";
}

static bool IsPlutoADwarf()
{
return true;
}

static int CountThePlanets()
{

return 8;

bool answer=true

defines a bolean variable and sets it to true, the same is

bool answer; 	 // variable definition 
answer = true;	 // set a value to the variable

Good practice recommends that variables definitions to be the first on our methods or programs
We shouldn’t create variables at the middle or at the end of the programs. We can’t use them before declaring it.

Then you can return a boolean value with

return answer;

or

return true;

Watch the steps:

1. Define a variable;
2. Set it a value;
3. Return it's value;

With

return bool answer=true;

you are defining a variable, setting it a value and returning it’s value in just one line; that’s doesn’t exist in C# language (or any other programing language…)

1 Like