How to convert List to Map?
Recently I have conversation with a colleague about what would be the optimal way to convert List to Map in Java and if there any specific benefits of doing so.
I want to know optimal conversion approach and would really appreciate if any one can guide me.
Is this good approach:
List<Object[]> results;
Map<Integer, String> resultsMap = new HashMap<Integer, String>();
for (Object[] o : results) {
resultsMap.put((Integer) o[0], (String) o[1]);
}