Convert a Map to List

In Java Map interface provides three collection views:Key set,value set, and key-value set.All of them can be converted to List by using a constructor or addAll() method.The following snippet of codeshow how to construct an ArrayList from a map.

=============================================================

// key list List keyList = new ArrayList(map.keySet()); // value list List valueList = new ArrayList(map.valueSet()); // key-value list List entryList = new ArrayList(map.entrySet());     =====================================================================