Introduced in Java 5, generics enhance the type safety of your code and make it easier to read. This helps you avoid runtime errors like the ClassCastException, which happens when you try to cast ...

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 ...

But primitive types aren’t objects, and that presents a problem. For example, all the collection classes in the JDK hold data as objects. If a developer has a set of int values they want to store in ...