Modern Java Features

Question 1

Optional

Answer 1

Побольше - https://struchkov.dev/blog/ru/optional-in-java

Поменьше - https://javarush.com/groups/posts/3941-kofe-breyk-161-kak-obrabatihvatjh-null-v-java-s-pomojshjhju-optional

ИИ (много кода и примеров) - https://chat.deepseek.com/share/l8sn738pzlxbc9u5mr

Question 2

Custom Annotations

Answer 2

https://javarush.com/groups/posts/68432-kofe-breyk-282-sozdanie-poljhzovateljhskoy-annotacii-v-java-dzheneriki-i-stiranie-tipov-v-java
https://chat.deepseek.com/share/fvc2adlx5uvz90so7z

Question 3

Нововведения в современных версиях

Answer 3

https://proselyte.net/java-8-vs-21-practice/

https://habr.com/ru/companies/pvs-studio/articles/890138/

https://habr.com/ru/companies/pvs-studio/articles/945626/

Question 4

Дженерики

Answer 4

https://javarush.com/groups/posts/2310-dzheneriki-na-kotikakh

https://chat.deepseek.com/share/fjyudfq67h1jdsv4pl

Question 5

Время (даты)

Answer 5

https://habr.com/ru/articles/274811/

https://habr.com/ru/articles/274905/

https://chat.deepseek.com/share/k98gx0nwf4w5u560mc