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C# Intermediate C# Polymorphism Virtual Methods

Tojo Alex
PLUS
Tojo Alex
Courses Plus Student 13,331 Points

What is wrong here

RepeatDetector.cs(6,9): error CS9010: Primary constructor body is not allowed Compilation failed: 1 error(s), 0 warnings

Please tell my what I did wrong here.

SequenceDetector.cs
namespace Treehouse.CodeChallenges
{
    class SequenceDetector
    {
        public virtual string Description => "";

        public virtual bool Scan(int[] sequence)
        {
            return true;
        }
    }
}
RepeatDetector.cs
namespace Treehouse.CodeChallenges
{
    class RepeatDetector : SequenceDetector
    {
        public override string DescriptIon => "Detects Repetitions";
        {
            if(sequence.Length < 2)
            {
                return false;
            }

            for(int i = 1; i < sequence.Length; ++i)
            {
                if(sequence[i] == sequence[i-1])
                {
                    return true;
                }
            }

            return false;
        }
    }
}

2 Answers

Steven Parker
Steven Parker
231,198 Points

This challenge is about creating a subclass that overrides the "Scan" method, which still needs to be done. But there is nothing in the instructions about creating a computed property named named "Description" in either class.

For best results in the challenges, do only what the instructions ask for.