JavaPlayTodosApi.java

package com.company;

import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.Arrays;

public class Main {


    public static void main(String[] args) throws IOException, InterruptedException {
	// write your code here

        String DATA_URL = "https://jsonplaceholder.typicode.com/todos";
        var httpClient = HttpClient.newHttpClient();
        var httpRequest = HttpRequest.newBuilder()
                .uri(URI.create(DATA_URL))
                .build();
        var httpResponse = httpClient.send(httpRequest, HttpResponse.BodyHandlers.ofString());

        var body = httpResponse.body();
        var mapper = new ObjectMapper();
        Todo[] todos = mapper.readValue(body, Todo[].class); //because in json representation in an array of todos
        //System.out.println(todos[1].title());

         var doneTodos = Arrays.stream(todos)
                .filter(Todo::completed)
                .count();

         System.out.println("Completed: " + doneTodos);
         System.out.println("Not completed: " + (todos.length - doneTodos));
    }
}

//https://angiejones.tech/deserializing-api-responses-into-java-records
record Todo(
            @JsonProperty("userId")
            int userId,

            @JsonProperty("id")
            int id,

            @JsonProperty("title")
            String title,

            @JsonProperty("completed")
            boolean completed) {}