将JSONobject值转换为Hash Map float值

Question

由于我不熟悉这种情况，我会先进道歉。在Hash Map中将JSONObject整数转换为浮点值是否有解决方法？我在Android环境中创建它。

double value;

private Map<String, Float> getPricing() {
        final Map<String, Float> m = new HashMap<>();

        m.put("AAA", (float) value);
        m.put("BBB", 0.747049f);

        //remove some list to shorten the code

        return m;
    }

 RequestQueue queue = Volley.newRequestQueue(this);
        StringRequest stringRequest = new StringRequest(Request.Method.GET, url,
                new Response.Listener<String>() {

                    @Override
                    public void onResponse(String response) {
                        try {

                            JSONObject json = new JSONObject(response);
                            JSONObject jsonStore = json.getJSONObject("quotes");

                            value = jsonStore.getDouble("rack");
                        // just a replicate to check if JSON is not null when log or Toast
                            replicate = jsonStore.getDouble("rack");

                        } catch (JSONException e) {
                        e.printStackTrace();
                        Log.i("Response", "Error");
                    }
                }
            },
            new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    Log.i("Response", "Error");
                }
            }
    );
    queue.add(stringRequest);

我记录并Toast JSONobject并验证它有一个值但是当它转换为float时它返回0.任何指导都非常感谢。美好的一天