Delete function only can run half until **arrayList.remove(which_item);** show the problen
49
What is a NullPointerException, and how do I fix it?
152524
How to remove from a map while iterating it?
2398
ConcurrentModificationException for ArrayList
14788
Why aren't Java Collections remove methods generic?
1834
Check if player has item, if so remove it
26049
When is the finalize() method called in Java?
33352
string.Remove doesnt work
58679
Does std::list::remove method call destructor of each removed element?
64389
Why do we even need the "delete[]" operator?
97590
Deleting from a Data Extension
55589
How to remove elements from a generic list while iterating over it?
93401
Is it possible to delete a non-new object?
109837
Collection was modified; enumeration may not execute error when removing a ListItem from a LIstBox
6527
How to avoid java.util.ConcurrentModificationException when iterating through and removing elements from an ArrayList
22601
Why doesn’t deleting from a Javascript array change its length?
52076
Why is an ArrayList parameter modified, but not a String parameter?
5724
Why does my ArrayList contain N copies of the last item added to the list?