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ArrayList methods (add, get, set, remove, size), traversal, ConcurrentModificationException, and ArrayList vs Array
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Explore the ArrayList class: import statement, generics (ArrayList<Type>), methods (add, get, set, remove, size, isEmpty), traversal with for loops and for-each loops, removing elements during traversal (backwards traversal or Iterator), autoboxing with wrapper classes, and ArrayList vs array comparisons.
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