ITVDN: JAVA DEVELOPER https://itvdn.com/ru/live-online/java-developer?utm_source=newsletter&utm_campaign=15.07.2021&utm_medium=java-online-developer
JAVA JDK: Java SE Development Kit 16.0.2 https://www.oracle.com/java/technologies/javase-jdk16-downloads.html
IDE: IntelliJ IDEA https://www.jetbrains.com/ru-ru/idea/download/#section=linux