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Christopher Aberly
1,241 PointsCS0161: Not all code paths return a value with Foreach Loop and conditional statement
Not sure what I'm missing here. I have an "else{}" statement to cover any untested scenarios within the Foreach Loop used to check the values against the previous value tested. So, I'm not sure what I'm missing. I believe the flaw is in the "RepeatDetector.cs" file.
namespace Treehouse.CodeChallenges
{
public class SequenceDetector
{
public virtual bool Scan(int[] sequence)
{
return true;
}
}
}
namespace Treehouse.CodeChallenges
{
public class RepeatDetector : SequenceDetector
{
private int checkOne;
private int checkTwo;
private bool checkReturn;
public override bool Scan(int[] sequence)
{
checkOne = 0;
checkTwo = 0;
foreach (int check in sequence)
{
checkTwo = checkOne;
checkOne = check;
if (checkTwo == checkOne)
{
return true;
}
else
{
return false;
}
}
}
}
}
4 Answers
Steve Agusta
6,221 Pointstry using a for loop instead to make sure you're looping through the array and think of how you might check the value of each index in the array, then you can make the comparison. Also, you can do it the way you have here, using a bool variable to return the value, but in the example you've shown, you're not actually returning that variable. Or you can just return the true/false value from within the loop.
Christopher Aberly
1,241 PointsThanks Steve. That helped. I was thinking that each item in the array needed to return something not just if any of the items in the array were duplicates then the whole thing needed to return true.
Steve Agusta
6,221 PointsSure, no problem. No, each item doesn't ned to return a value, we're just checking each value in the array against the value before it to see if they are in sequence. Have you got it now, or do you need a hint?
Christopher Aberly
1,241 Pointsall good.