Loading HashMap from file

I'm going to save a HashMap<Integer, HashMap<Integer, String>> to a file, how would I go about loading the initial hashmap and the hashmap inside of it??? I know kind of how to load a single hashmap, but not this.

This is what my config is going to look like.

Code:

Spawns:
  1:
    1: world,x,y,z
    2: world,x,y,z
    3: world,x,y,z
  2:
    1: world,x,y,z
    2: world,x,y,z
    3: world,x,y,z

 

Loop through all keys of "Spawn", loop through all keys of each of those, adding to HashMap?

 

RealDope That's true, didn't think of that, I'll try that later and tell you what I get!

 

Code:java

 
//save list
for(int i : hashmap.keySet()) {
    List<String> list = new ArrayList<String>();
    for(int j : hashmap.get(i) {
        String k = hashmap.get(i).get(j);
        list.add(k);
    }
    getConfig().set("data."i+"/"+j, k);
}
saveConfig();
 
//load list
hashmap = new HashMap<Integer, HashMap<Integer, String>();
if(getConfig().getConfigurationSection("data") != null) {
    Set<String> set = getConfig().getConfigurationSection("data").getKeys(false);
    for(String i : set) {
        String[] j = i.split("/", 1);
        int a = Integer.valueOf(j[0]);
        int b = Integer.valueOf(j[1]);
        HashMap<Integer, String> c = new HashMap<Integer, String>();
        List<String> list = getConfig().getStringList(i);
        for(String d : list)
            c.put(b, d);
 
        hashmap.put(a, c);
    }
}
 

line 9 should be:
getConfig().set("data."+i+"/"+j, k);

my method makes a messy cofig xD
it would look like:

Code:

spawns:
  1/1:
    - world,x,y,z
    - world,x,y,z
  1/2:
    - world,x,y,z
  2/1:
    - world,x,y,z

EDIT by Moderator: merged posts, please use the edit button instead of double posting.