Java Vector
Java Vector is a legacy class in the Java Collections Framework that provides a dynamic array-like data structure that automatically resizes itself when elements are added or removed. Similar to ArrayList, Vector is synchronized, making it thread-safe for use in multi-threaded environments. However, this synchronization comes with a performance overhead, making ArrayList a preferred choice in single-threaded scenarios. Vector supports various methods for adding, removing, and accessing elements, providing flexibility in managing collections of objects. While Vector was commonly used in earlier versions of Java, ArrayList is generally preferred in modern Java programming due to its better performance in most scenarios. Despite this, Vector still finds use in situations where thread safety is a concern and synchronization is required. Overall, Vector provides a synchronized alternative to ArrayList for scenarios requiring thread-safe operations on dynamic arrays in Java applications.