### Question:
Json { public static JsonArrayBuilder array() { return new JsonArrayBuilder(false); } private  Json(); static JsonArrayBuilder array(); static JsonArrayBuilder array(boolean ignoreEmptyBuilders); static JsonObjectBuilder object(); static JsonObjectBuilder object(boolean ignoreEmptyBuilders);  }### Answer:
@Test public void testJsonArray() { assertEquals("[\"foo\",\"bar\",[\"baz\"]]", Json.array().add("foo").add("bar").add(Json.array().add("baz")).build()); }