Java

JSON: Nested Objects

See more JSON Examples

Here we have a JSON object that contains nested JSON objects. This example demonstrates how to access the contents of the nested objects.

{
  "name": "donut",
  "image":
    {
    "fname": "donut.jpg",
    "w": 200,
    "h": 200
    },
  "thumbnail":
    {
    "fname": "donutThumb.jpg",
    "w": 32,
    "h": 32
    }
}

Chilkat2 Java

import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.JsonObject;

public class ChilkatExample {

    public static void main(String[] args) {
        JsonObject json = new JsonObject();

        // This is the above JSON with whitespace chars removed (SPACE, TAB, CR, and LF chars).
        // The presence of whitespace chars for pretty-printing makes no difference to the Load
        // method.
        String jsonStr = "{\"name\": \"donut\",\"image\":{\"fname\": \"donut.jpg\",\"w\": 200,\"h\": 200},\"thumbnail\":{\"fname\": \"donutThumb.jpg\",\"w\": 32,\"h\": 32}}";

        try {
            json.load(jsonStr);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Get the "image" object.
        JsonObject imageObj = new JsonObject();
        json.objectOf2("image", imageObj);

        System.out.println("image: fname=" + imageObj.stringOf("fname") + ", width=" + imageObj.intOf("w") + ", height=" + imageObj.intOf("h"));

        // Get the "thumbnail" object.
        JsonObject thumbObj = new JsonObject();
        json.objectOf2("thumbnail", thumbObj);

        System.out.println("thumbnail: fname=" + thumbObj.stringOf("fname") + ", width=" + thumbObj.intOf("w") + ", height=" + thumbObj.intOf("h"));
    }
}