removeFromFront()

/* Remove an item from the beginning of the list */
public void removeFromFront() {
    if (head == null) {                                                     // 1
        throw new IndexOutOfBoundsException("The linked list is empty.");   // 1
    }                                                                       // 1
    head = head.next;                                                       // 2
    size--;                                                                 // 3
}