java - Using a HashMap and an ArrayList to store variable names and values. How to use for creating new objects? -

i have hashmap stores name of object variable , values need used object.

the object creation be:

room [key] = new room([value1]); 

below hashmap:

public static map<string, list<string>> makeroom(string[] room){     map = new hashmap<string, list<string>>();         int roomnumber = integer.parseint(room[1]);          list<string> valsetone = new arraylist<string>();         valsetone.add(room[2]);         valsetone.add(room[3]);         valsetone.add(room[4]);         valsetone.add(room[5]);          map.put("r"+roomnumber, valsetone);          return map;     } } 

how use produce new object? example, have 3 keys: r1, r2, r3. how can produce code:

room r1 = new room(1); room r2 = new room(2); room r3 = new room(3); 

thank in advance.

to answer question, can this:

constructor roomconstructor = room.class.getconstructor(integer.class); room r1 = roomconstructor.newinstance(integer.parseint(map.get("r1"))); room r2 = roomconstructor.newinstance(integer.parseint(map.get("r2"))); room r3 = roomconstructor.newinstance(integer.parseint(map.get("r3"))); 

the class object lets grab constructor , create new instance out of it, provided pass in correct parameters.