Say goodbye to the public static void main method in Java 21 with the unnamed classes and instance main methods preview features.

Method and variable handles vs. Java reflection To truly understand MethodHandles and VarHandles —what they do and why they are useful—it’s helpful to know a few things about reflection in Java.

To build your first Java AWS Lambda function, just create a simple class with an instance method that performs the following functions: Takes a String as an argument.