Just now, I was going through Solr code and came upon a snippet of code to iterate over a Map, which I did not know before:
Map<Integer, String> map = new HashMap<Integer, String>(); map.put(1, "one"); map.put(2, "two"); for (Map.Entry<Integer, String> e : map.entrySet()) { System.out.println(e.getKey()); //prints 2 and 1 System.out.println(e.getValue()); //prints two and one }
API for the Entry inner class.
I knew B-)