using arrays or Arraylist in java language Write the method named examScore(). * * The "key" list contains the correct answers * to an exam, like ["a", "a", "b", "b"]. The "answers" * list contains a student's answers, with "?" representing * a question left blank. The two lists are not empty and * are the same length. Return the score for this list * of answers, giving +4 for each correct answer, -1 for * each incorrect answer, and +0 for each blank answer. * * Examples: * examScore(["a", "a", "b", "b"], ["a", "c", "b", "c"]) returns 6 * examScore(["a", "a", "b", "b"], ["a", "a", "b", "c"]) returns 11 * examScore(["a", "a", "b", "b"], ["a", "a", "b", "b"]) returns 16 * * @param key a list of correct answers to an exam. * @param answers the student's answers to the exam. * @return the score as described above
using arrays or Arraylist in java language
Write the method named examScore().
*
* The "key" list contains the correct answers
* to an exam, like ["a", "a", "b", "b"]. The "answers"
* list contains a student's answers, with "?" representing
* a question left blank. The two lists are not empty and
* are the same length. Return the score for this list
* of answers, giving +4 for each correct answer, -1 for
* each incorrect answer, and +0 for each blank answer.
*
* Examples:
* examScore(["a", "a", "b", "b"], ["a", "c", "b", "c"]) returns 6
* examScore(["a", "a", "b", "b"], ["a", "a", "b", "c"]) returns 11
* examScore(["a", "a", "b", "b"], ["a", "a", "b", "b"]) returns 16
*
* @param key a list of correct answers to an exam.
* @param answers the student's answers to the exam.
* @return the score as described above.
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