AP Computer Science Question 1

public int keyScore(String[] key, String[] answers)
{
 int score = 0;
 for(int i = 0; i < key.length; i++)
 {
  if(key[i].equals(answers[i]))
  {
   score += 3;
  } else if(answers[i].equals("_")) {
   score += 0;
  } else {
   score -= 1;
  }
 }
return score;
}