[FIXED] Java 8: Is there a batter way to filter JSONArray?

Issue

I came up with this code to filter all the true objects, but can I have it even neater? The intstream and boolean casting are itching me...

import org.json.JSONArray;
import org.json.JSONObject;

JSONArray arr = new JSONArray();
arr.put(false);
arr.put(true);
arr.put(false);

//JSONArray is a list of objects
boolean b = IntStream.range(0, arr.length())
        .filter(index -> ((boolean) arr.get(index)) == true)
        .findAny()
        .isPresent();

I use

<groupId>org.json</groupId>
<artifactId>json</artifactId>
<version>20180813</version>

dependency. Is it the best selection?

Solution

You could use IntStream with getBoolean:

JSONArray arr = new JSONArray();
arr.put(false);
arr.put(true);
arr.put(false);

//JSONArray is a list of objects
boolean b = IntStream.range(0, arr.length())
        .anyMatch(arr::getBoolean);

System.out.println(b);

Output

true

As an alternative you could use the following:

boolean b = StreamSupport.stream(arr.spliterator(), false)
                .anyMatch(Boolean.TRUE::equals);

The above solution does handle the JSONException problem, for instance it returns true for the following input:

JSONArray arr = new JSONArray();
        arr.put(false);
        arr.put(1);
        arr.put(true);

Answered By - Dani Mesejo