The standard functional interfaces in Java can look daunting. There are 43 of them! And they have complex and confusing names. This article will help you interpret the names and purpose of these standard functional interfaces.
Is it easy to learn to program? If you google this, the results will be very confusing. The truth is that it is not easy – but you should still do it. You just need to be prepared.
What are functional interfaces and why are they used with lambdas? Lambdas and functional interfaces go hand-in-hand in Java. In this article we discuss some principles of functional interfaces.
You’ve heard the term, but what is a lambda and how do you use them in Java? This is a quick introduction to lambdas in Java.
We often need to compare objects. Sorting, for example, is based on comparison according to some criteria. So it is important to understand the difference between Comparable and Comparator.
You’ve heard the term “canonical class”, but what does it mean? In Java, a canonical class is simply a well-formed or well-behaved class. The canonical class form is most often used for model classes (also called domain or entity classes).
You’ve heard of JavaBeans. But what are they actually? Java 1.1. introduced the term JavaBean to describe a self-contained, reusable, high-granularity component. The original idea was to create high-level building blocks for graphical user interfaces (GUI).
You often use the Java concatenation operator (+) to concatenate (join) two strings together. And you use it with both string literals and string variables. But what’s going on behind the scenes?
Every experienced programmer has a favourite language, and a not-so-favourite language. Lewis loves Java — that’s why he develops and presents all the Java-related courses. I once heard Renier describe C as being like poetry. But I think very few programming languages have inspired as much passion and playfulness as
When last did you see ++i in a C, C++, C#, Java, or JavaScript program? On the other hand, you would have seen i++ numerous times. Why is this the preferred choice?
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