Can I store string in object array by using this string as index?

Question

Can Java use a String as an index array key?

Example:

array["ab"] = "ab";

Answer 1

No you cannot. Array index must be integer .

And if you want to pair them up, look at Map , where you can use String as a key and value Map<String,String>.

Map<String,String> map = new HashMap<String,String>();
map.put("ab","ab"); //adding key-value;

String value map.get("ab"); //gives you "ab"