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.

Use Java assertions to test your assumptions about program correctness and check them in your code.

For example, if Java infers a type to be a String, it will not assigned that type to an int or a float later on in the code. int x = 10; x = "ten"; // Error: violation of strong typing in Java When ...