Selenium WebDriver with Java - Basics to Advanced and Frameworks - Difference Between HashMap and HashTable (Interview)

The video tutorial explains the differences between hashmap and hashtable, focusing on synchronization, thread safety, handling of null keys and values, and iteration methods. Hashmap is not synchronized and allows multiple threads to access it simultaneously, while hashtable is synchronized and thread-safe. Hashmap permits null keys and values, unlike hashtable. Iteration in hashmap uses an iterator, whereas hashtable requires an enumerator. These differences are crucial for understanding their use cases in programming.

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