Jackson.java

import java.io.File;
import java.io.IOException;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class Jackson {
    public static void main(String[] args) {
        try {
            ObjectMapper mapper = new ObjectMapper();
            JsonNode root = mapper.readTree(new File("test.json"));
            String member_name = root.get("member").get(0).get("name").asText();
            System.out.println(member_name);
            int age = root.get("member").get(3).get("age").asInt();
            System.out.println(age);

            for (JsonNode n : root.get("album")) {
                String album_name = n.get("name").asText();
                int year = n.get("year").asInt();
                String month = n.get("month").asText();
                int day = n.get("year").asInt();
                System.out.println(album_name + ": " + day + " " + month + " " + year);
            }
        } catch (IOException ioe) {
            ioe.printStackTrace();
        }
    }
}