Explore the nuances of using Class.forName() to check the existence of a class in the Java classpath

In this tutorial learn all about how to use the Java Arrays deepEquals method.

Learn about Phantom References in Java and their common usage scenarios.

Discover different ways of initializing arrays in Java.

Quick and practical guide to Java 8's CompletableFuture.

Learn how to change annotation parameters in runtime using reflection in Java.

Learn what it means to warm up a JVM and how to do it.

Learn how to split a comma-separated String into a list of Strings and how to join a String array into a comma-separated String.

A quick look at several algorithms for finding pairs of numbers in an array that add up to a given sum in Java using traditional for loops and the Java 8 Stream API.

Learn about the ternary operator ?:, which allows us to define conditional expressions in Java.

Learn how to obtain the file extension programmatically in Java.

Learn how to get names of classes inside a given JAR file and how to load classes from a JAR file at runtime.

Learn how to leverage the template method pattern in Java.

Learn about the Spliterator interface that can be used for traversing and partitioning sequences.

Learn how to return another Optional instance if the first one is empty.

Review what compilation errors are, and then specifically explain what the "cannot find symbol" error is and how it's caused.

Learn how to create a dynamic URL in Retrofit2

Learn how to convert a Map to a String and the other way around using both core Java methods and third-party libraries.

How to do Base64 encoding and decoding in Java, using the new APIs introduced in Java 8 as well as Apache Commons.

A guide to understanding Java Instrumentation and implementing custom agents.