I'm a complete beginner in this field and was wondering if someone could giving me a helping hand.

I have the following JSON formatted file which lists countries according to their corona statistics:

https://corona.lmao.ninja/v3/covid-19/countries

Is it possible to obtain the country (preferably top 10) which holds the max amount of cases or deaths?

I have previously used a JSONObject to retrieve the relevant data, but how does one obtain the max value across all countries?

Before, I would store the whole data within a buffer from the following link https://corona.lmao.ninja/v2/all

JSONObject jsonObject = new JSONObject(buffer.toString());

Then retrieve the data as such:

cases = jsonObject.getInt("cases");
totdeath = jsonObject.getInt("deaths");

However, I'm now trying to figure out how I can iterate through https://corona.lmao.ninja/v3/covid-19/countries to obtain the country with the most deaths or cases?

Please review the links above. Any help is appreciated.

CodePudding user response：

How do you eat an elephant?

By cutting it into many pieces.

It's programming. You're doing too many things at once. The proper order is:

{1} How do I turn all this JSON into actual properly structured java objects (answer: Probably GSON or Jackson - libraries that turn JSON into structured data).

{2} How do I sort these on some specific property (answer list.sort(Comparator.comparing(Country::getCases) or similar)

{3} how do I print only the top entries (list.subList(0, 10), probably also needs a range check in case the input has fewer than 10 entries).

CodePudding user response：

The logic I would follow for this is to convert the JSON to an array or arraylist and then sort it by the field that you are interested in.