RemoveElements.java

public ListNode removeElements(ListNode head, int val) {
  final ListNode fake = new ListNode(-1);
  fake.next = head;

  ListNode cur = fake;
  while(cur.next != null){
    if(cur.next.val == val){
      cur.next = cur.next.next;
    }else{
      cur = cur.next;
    }
  }
  return fake.next;
}