HashMap vs. Hashtable similarities Both the Hashtable and HashMap implement the Map interface and both share the same set of methods used to add, remove and manipulate elements of a key-value, ...

Using generics results in more robust code and avoids ClassCastExceptions in your Java programs. This in-depth tutorial introduces you to generics and their types and methods.

The Java compiler sends warnings about using raw types in Java. These warnings are generated to alert developers about potential risks related to type safety when using raw types instead of generics.