Date: 2013jun20 Language: Java Keywords: LinkedHashSet, insert Q. Java: A HashMap randomizes the order of keys. How can I keep keys in add order? A. Use LinkedHashMap. The entrySet() will be in the same order as they keys were added. (Not necessarily alphabetical order) I used this class when I wanted to read the section of a .ini file in. And then write it out with a small change but not radically changing the order of the keys.

LinkedHashMap<String,String> map = new LinkedHashMap<String,String>(); map.put("One", "1"); map.put("Two", "2"); map.put("Three", "3"); for (String key : map.entrySet()) { System.out.println(key); }