converting the below data structure of Map into another data structure in java -


i trying create following data structure: 

  map<string, map<string, list<string>>>

i want shown below:

key         value  b1          payername  ----> "wpn", "wpfnb", "dgeft", "xbthy"             fixedrate ----->"dd", "ww", "trrty", "httyure"  b2          payername  ----> "ssswpn", "wpfsssnb", "gggdgeft", "xbtyyyyhy"             fixedrate ----->"wwdd", "wttyw", "yyyytrrty", "iiihttyure"

so have tried please advise me there other way or data structure in can achieve same below functionality through linked list or tree please advise 

map<string, map<string, list<string>>> ultimatemap = new hashmap<string,map<string, list<string>>> ();      map<string, list<string>> map1 = new hashmap<string, list<string>>();     map1.put ("payername", arrays.aslist("wpn", "wpfnb", "dgeft", "xbthy"));     map1.put ("fixedrate", arrays.aslist("dd", "ww", "trrty", "httyure"));      map<string, list<string>> map2 = new hashmap<string, list<string>>();     map2.put ("payername", arrays.aslist("ssswpn", "wpfsssnb", "gggdgeft", "xbtyyyyhy"));     map2.put ("fixedrate", arrays.aslist("wwdd", "wttyw", "yyyytrrty", "iiihttyure"));      ultimatemap.put("b1", map1);     ultimatemap.put("b2", map2);

advise me there other way or data structure in can achieve same below functionality through linked list or tree please advise 

map<string, map<string, list<string>>> ultimatemap = new hashmap<string,map<string, list<string>>> ();

is way of implementing ultimate map. don't think there can better way.


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