Method indexOf

classpath/java/util/ArrayList.java:103–110

(Object element)

  }

  public int indexOf(Object element) {
    for (int i = 0; i < size; ++i) {
      if (equal(element, array[i])) {
        return i;
      }
    }
    return -1;
  }

  public int lastIndexOf(Object element) {
    for (int i = size - 1; i >= 0; --i) {