Java: create a list of HashMaps

Question

I tried to create a list of maps. In the following code, I\'m expecting to get

[{start=1,text=ye}, {start=2,text=no}]

however, I only got

Answer 1

You need to create a new HashMap for every entry, instead of reusing the existing one. This would work:

HashMap mMap = new HashMap();
mMap.put("start",1);
mMap.put("text","yes");
list.add(mMap); 
mMap = new HashMap(); // create a new one!
mMap.put("start",2);
mMap.put("text","no");
list.add(mMap); 

also, you can remove the list.add(new HashMap()); as that adds an empty map to your list that is never populated.