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C# Intermediate C# Polymorphism Virtual Methods

Travis John Villanueva
Travis John Villanueva
5,052 Points
Posted by Travis John Villanueva
Travis John Villanueva
5,052 Points

Override Topic

I am a bit confuse with how the question are structured. Im clear with override, but integrating it with a class that has a empty array, i don't know if i would change the base class or create one myself in the subclass. Can anyone help me regarding this one?

SequenceDetector.cs 
namespace Treehouse.CodeChallenges
{
    class SequenceDetector
    {
        public virtual bool Scan(int[] sequence)
        {
            return true;
        }
    }
}
RepeatDetector.cs 
namespace Treehouse.CodeChallenges
{
    class RepeatDetector : SequenceDetector
    {
        public override bool Scan(int[] sequence)
        {
            int i=1;
            int j = i-1;

            while(i < sequence.Length){
                if(sequence[i]==sequence[j]){
                    return true;
                    i++;
                }
                    return false;


            }

        }

    }
}

1 Answer

Steven Parker
Steven Parker
231,268 Points
Steven Parker
Steven Parker
231,268 Points

This code looks awfully familiar.

Remember, 5 days ago in your other question I told you that you probably want to return false only after the loop is over. I also said that you should compute your "j" value inside the loop,

I see that you added an increment for "i", but it should not be inside the conditional. And nothing is ever executed after a return statement.

But as to your question, you won't need to create an array for this challenge. And neither of these classes has an empty array, but they both have a function that takes an array argument. That passed-in array is all you need to make the function work.