java concurrency

[video]

Multithreading in Java Part 1 | Introduction to Threads in Java | Java tutorial by Java9s
https://www.youtube.com/watch?v=O_Ojfq-OIpM

Multithreading in Java Part 2 | Thread States | Java Tutorials by Java9s
https://www.youtube.com/watch?v=wqkVCkeObsE

Thread Safety and code synchronization in java | Multithreading in Java part 3
https://www.youtube.com/watch?v=IYBrtzOvfqo

Multithreading Interview Question In Java
https://www.youtube.com/watch?v=Iea3p2HFqNo