Notice the detail that interface methods are implicitly abstract. This means we don’t need to explicitly declare them as abstract. When default methods were introduced in Java 8, some developers ...

To illustrate how generics are used in the Java Collections Framework, let’s look at some examples. In this code, we are declaring our ... generic method with an Integer array Integer[] intArray ...

An interface is implicitly abstract. You do not need to use the abstract keyword when declaring an interface. Each method in an interface is also implicitly abstract, so the abstract keyword is not ...

For this Java Function interface example, we will provide a single method named “apply” that takes an Integer as an argument, squares it and returns the result as a String. Before we begin, let’s take ...