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Start your free trialchanjong kim
2,315 Pointsi have no clue
I made SequenceDetector.Scan method as an abstract as I was told, but it throws an error. I have no clue to fix it.
namespace Treehouse.CodeChallenges
{
public class RepeatDetector : SequenceDetector
{
public override string Description => "Detects repetitions";
public override bool Scan(int[] sequence)
{
LastScannedSequence = sequence;
if(sequence.Length < 2)
{
return false;
}
for(int i = 1; i < sequence.Length; ++i)
{
if(sequence[i] == sequence[i-1])
{
return true;
}
}
return false;
}
}
}
namespace Treehouse.CodeChallenges
{
public abstract class SequenceDetector
{
public virtual string Description => "";
public int[] LastScannedSequence { get; protected set; }
public abstract bool Scan(int[] sequence)
{
LastScannedSequence = sequence;
return true;
}
}
}
1 Answer
Steven Parker
231,198 PointsYou correctly changed the designation, but an abstract class definition also has no body.
chanjong kim
2,315 Pointschanjong kim
2,315 PointsYes, that is what I got from an error. Acutually I don't quite get what it says. Does it mean that
Steven Parker
231,198 PointsSteven Parker
231,198 PointsThat would stil be a body, just an empty one. For no body at all:
public abstract bool Scan(int[] sequence);