Java Programming for Complete Beginners - Java 16 - Step 05 - List Interface Implementations - ArrayList Versus Vector

The video tutorial explains the differences between Vector and ArrayList in Java. It highlights that Vector has been available since Java 1.0, while ArrayList was introduced in Java 1.2. The key difference is that Vector methods are synchronized, making it thread-safe, whereas ArrayList methods are not, offering better performance when thread safety is not a concern. The tutorial also discusses the performance impact of synchronization and suggests using ArrayList when thread safety is not required. It briefly mentions concurrent collections as advanced options for thread safety.

Why was the array list introduced after the vector class in Java?

What is the main difference between a vector and an array list in terms of thread safety?

Explain the impact of synchronization on the performance of a vector.

In what scenarios would you prefer to use an array list over a vector?

What are concurrent collections in Java, and how do they relate to vector and array list?