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C# Intermediate C# Polymorphism Virtual Methods

Posted by Hamilton Mtungwazi
Hamilton Mtungwazi
1,868 Points

Subclass the SequenceDetector class call the new class RepeatDetector

somebody help me get past this

SequenceDetector.cs 
namespace Treehouse.CodeChallenges
{
    class SequenceDetector
    {
        public virtual bool Scan(int[] sequence)
        {
            return true;
        }
    }
    public class RepeatDetector : SequenceDetector
    {
        public override SequenceDetector();
    }
}
RepeatDetector.cs

1 Answer

Steven Parker
Steven Parker
231,248 Points
Steven Parker
Steven Parker
231,248 Points

I had trouble passing task 2 with that "public" declaration on the new class, didn't you?

But for task 3, the instructions say to "Override the Scan method", so you might want to start with a copy of that method from the base class with "override" substituted for "virtual". Then, you'll probably use a loop to step through the sequence and compare the adjacent values with each other. If any of them match, return true, but if the loop finishes without finding any you can return false.

Also, notice that another file named RepeatDetector.cs was supplied for use in creating the new class. But you don't need to use it if you prefer working in the first file — it will not affect passing the challenge.