Question 7 was wrong by the result for the method call combine("10111", "01101"), for example. The correct answer was the second option by the characters starting at 0 which is an important factor for what the program entitles the user to do.
Q17 error in count method
The method works as intended when the last element in all the columns of the two-dimensional input array does not contain the string "a". That is the case for this option, so the method will appear to work as intended. Therefore my answer was wrong and the correct answer was a boolean expression with an inner loop.
Score: 50/52
Corrections:
Q7 combine method
Question 7 was wrong by the result for the method call combine("10111", "01101"), for example. The correct answer was the second option by the characters starting at 0 which is an important factor for what the program entitles the user to do.
Q17 error in count method
The method works as intended when the last element in all the columns of the two-dimensional input array does not contain the string "a". That is the case for this option, so the method will appear to work as intended. Therefore my answer was wrong and the correct answer was a boolean expression with an inner loop.