private void removeEntry(int index) {
    if (index == myBack) {
      myBack = myCache[index].prev;
    }
    else {
      myCache[myCache[index].next].prev = myCache[index].prev;
    }
    if (index == myTop) {
      myTop = myCache[index].next;
    }
    else {
      myCache[myCache[index].prev].next = myCache[index].next;
    }
  }
private void removeEntry(int index)