Learn Java from Scratch - A Beginner's Guide - Step 05 - List Interface Implementations - ArrayList Versus Vector

The video tutorial explains the differences between Vector and ArrayList in Java, focusing on their history, code differences, and synchronization. Vector, available since Java 1, is synchronized and thread-safe, making it suitable for multithreaded environments. ArrayList, introduced in Java 1.2, is not synchronized, offering better performance when thread safety is not a concern. The tutorial also highlights the performance impact of synchronization and introduces advanced thread safety options like concurrent collections.

What performance impact does thread safety have when using synchronized methods?

What are concurrent collections and how do they relate to vectors and array lists?