The release of Java SE 15 in Sept 2020 will introduce "sealed classes" (JEP 360) as a preview feature. A sealed class is a class or interface which restricts which other classes or interfaces may ...

Creating simple data classes in Java traditionally required substantial boilerplate code. Consider how we would represent Java’s mascots, Duke and Juggy: public class JavaMascot { private final String ...

Have you ever wondered how Java seamlessly combines its primitive data types with object-oriented programming? Enter wrapper classes, an important but often overlooked Java feature. These special ...

After looking at some of the advanced ideas of classes and objects, we need to return to some simpler topics to make our understanding complete. We need to look more closely at data and, to get things ...

One of the features that make Java so powerful, is its object-oriented structure. This means that Java uses classes and objects to create more scalable, modular, and organized code. This can be a ...

Project Valhalla’s value classes are heading to JDK 28, a 197,000-line change that rewrites how Java handles object identity. Oracle software engineer Lois Foltan has confirmed that Java Enhancement ...