Subtracting one arrayList from another arrayList

Question

I have two arrayLists and I am trying to \"subtract\" one arrayList from another. For example, if I have one arrayList [1,2,3] and I am trying to subtract [0, 2, 4] the resu

Answer 1

I'm guessing you get the range problem because you've eliminated one of the elements which changes what the inner loop is looking for (I know this problem occurs when dealing with normal Lists and Collections).

What I've had to do in the past to work around this, is to create a list of items that need to be removed (that is ones that are found in the original list). Iterate through that new list and directly eliminate the original list's elements without having to have an iterator moving through it.