// http://codingbat.com/prob/p178986

public boolean hasTeen(int a, int b, int c) {
  if ((a >= 13 && a <= 19) || (b >= 13 && b <= 19) || (c >= 13 && c <= 19)) {
    return true;
  }
  else {
    return false;
  }
}

Create hasTeen.java