Pass by reference means we pass the location in memory where the variable’s value is stored and pass by value means we pass a copy of the variable’s actual value.

This post explains how to use variables in Java. Learn the primitive types (and what that means) and just why variables are so important for any coding!

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.