There are only half a dozen classes you really need to master to become competent in the world of functional programming. The java.util.function package contains well over 40 different components, but ...

Sample app for my tutorial Building a GraphQL Server with Spring Boot. Updated by @Ansonator to recent versions of Spring Boot and GraphQL Java. The tutorial branch contains the original demo app. You ...

The tutorial assumes you're already familiar with Java and Selenium and focuses on using it with Percy. You'll still be able to follow along if you're not familiar with Java Selenium, but we won't ...

The most significant addition to the Java language since Sun Microsystems rewrote the collections API for Java 5 is the introduction of Java records. Java records address two significant pain points ...

Developers make assumptions about how our code will behave when executed, but we’re not always right. Without certainty, it is challenging to write programs that work correctly at runtime. Java ...