foreach loop on ArrayList<Stack<String>>

[Norm]

If you only want to look at what is currently in paths.

for(int i=0; i < paths.size(); i++)

vs

int pathsSize = paths.size();  // get current size. size() will change if we add to the list
for(int i=0; i < pathsSize; i++)

[Ciwan]

int pathsSize = paths.size(); // get current size. size() will change if we add to the list
for(int i=0; i < pathsSize; i++)

Genius !! Thank You