Learn about the new Java 10 "var" type, and experiment using JShell with this hands-on tutorial on how to reduce boilerplate code using new type inference for local variables.

Learn the four types of polymorphism in Java, then start using subtype polymorphism to execute different forms of the same Java method.

Why should you use Collections class methods rather than similarly named fields to obtain empty collections? Type safety makes the crucial difference.

Because GraalVM is the first compiler of its kind written completely in Java —a memory-safe language designed for productivity—unlike other compilers, it’s easy for developers to read and ...