String[] names = new String[16]; arr.length; list.size(); str.length();

newList.addAll(list1); Collections.sort(newList)

"" + someInt; Integer.parseInt(str)

Create 6B. Create a list

ArrayList<String> list = new ArrayList<>();

Collections.min/max, THEN go through list to find secondSmallest

eg change order

get, remove

ArrayList<Integer> lista = new ArrayList<>(); for (int l : pa) lista.add(l);

someMethod(ArrayList<Integer> list)

equals

equals

Create 1b. Calculator

obj1.equals(obj2)