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 ...

A controversial new proposal for .NET suggests the introduction of a limited form of multiple inheritance via abstract interfaces. This feature was inspired by Java’s default methods. The ...

According to the JavaDoc, the Consumer interface accepts any type of object as input. The java.util.function.Consumer class has one non-default method named accept which takes a single object as its ...

We’ll start with how to sort using Java’s Comparable interface. We use Comparable when there is a single, default comparison for the object we want sorted. The compareTo() method compares a ...