To illustrate how generics are used in the Java Collections Framework, let’s look at some examples. List and ArrayList with generics. In the above example, we already briefly explored a simpler ...

List<String> list = new ArrayList<>(); To go further, consider this code sample using the Java Collections API without polymorphism:. public class ...

Unlike the String and ArrayList, Java arrays do not have a size() or length() method, only a length property. How do you find the size of an array in Java? To determine the size of a Java array, query ...

Compared to before, Java’s double brace initialization makes the more concise, less verbose and more readable and maintainable for developers who will work on the code in the future. If you need to ...