/super-csv/src/main/java/org/supercsv/util/TwoDHashMap.java
map = new HashMap<K1, HashMap<K2, V>>( ) ;innerMap = new HashMap<K2, V>( ) ;
innerMap = new HashMap<K2, V> ( ) ;
} return innerMap.get(secondKey); } public Object set(final K1 firstKey, final K2 secondKey, final V value) { HashMap<K2, V> innerMap = map.get(firstKey); if( innerMap == null ) { <extra_id_0> map.put(firstKey, innerMap); } return innerMap.put(secondKey, value); } public int size() { return map.size();