String for Array/List

Question

I got the following String:

[{"Monstro":"Lobo","HP":100,"Level":2},{"Level":"1","HP":"100","Monstro":"Bruxa"}]

And I need to put her inside a Array ou List to take the values of each monster.

• How do I do it?

I’m sorry if the doubt seems obvious.

_{OBS: are data from JSON that are within the […] as normal as this and has the },{ between them that seprar the 2 different values that are within the [...].}

Answer 1

I would follow the same idea of comment from @Francisco, create an object that maps the monster’s attributes: nome, hitpoints and level, although I would not use them per hour in my application. But, if the goal is only to get all the key values Monstro, can do so:

public final List<String> getMonstros(String json){
    List<String> monsters = new ArrayList<>();
    try {
        new JSONArray(json).forEach(item -> {

            JSONObject object = (JSONObject) item;
            if(object.has("Monstro"))
                monsters.add(object.getString("Monstro"));

        });  
    } catch(Exception ex){
        // Tratamento de exceção.
    }
    return monsters;
}

final String json = "[{\"Monstro\":\"Lobo\",\"HP\":100,\"Level\":2}, {\"Level\":\"1\",\"HP\":\"100\",\"Monstro\":\"Bruxu\"}]";
System.out.println(getMonstros(json)); // [Lobo, Bruxu]