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C# C# Objects Methods Methods

Atanu Mondal
Atanu Mondal
1,976 Points
Posted by Atanu Mondal
Atanu Mondal
1,976 Points

getting compile error while calling EatFly method with if condition checking

while compiling the program i am getting a compile error as Treehouse.CodeChallenges.Frog.EatFly(int)': not all code paths return a value Compilation failed: 1 error(s), 0 warnings

below is my complete code

namespace Treehouse.CodeChallenges
{
    class Frog
    {
        public readonly int TongueLength;

        public Frog(int tongueLength)
        {
            TongueLength = tongueLength;
        }

        public bool EatFly(int distanceToFly)
        {
            if(TongueLength >= distanceToFly)
            {
                return true;
            }
        }
    }
}

if i dont use if statement it runs correctly 

return TongueLength >= distanceToFly;

can anyone explain why?

Frog.cs 
namespace Treehouse.CodeChallenges
{
    class Frog
    {
        public readonly int TongueLength;

        public Frog(int tongueLength)
        {
            TongueLength = tongueLength;
        }

        public bool EatFly(int distanceToFly)
        {
            if(TongueLength >= distanceToFly)
            {
                return true;
            }
        }
    }
}

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

Directly returning the result of the comparison always gives a boolean value, which is consistent with the function definition. This is also an optimum solution to the challenge.

When you add the IF condition, you're only returning a value when the condition is met. To meet the requirements of the definition, you'd also need to a return a value when the condition is not met.