size list java

1        Collection<Object> list = new ArrayList<>();
2        list.size();
3        
4        // All collections use size()
5        // array use array. length 
6

1ArrayList<String> listOfBanks = new ArrayList<>(); 
2int size = listOfBanks.size(); 
3System.out.println("size of array list after creating: " + size);

1Before operation: [1, 2, 3, 4, 5]
2Size of list = 5
3
4
5

1a.size() where a is list