Get started with polymorphism in Java and how to do method invocation in polymorphic method calls.

As you can see in the following var examples, the left-hand side of the assignment does not reference a Java types such as long, double or ArrayList. Instead, it uses the Java var keyword, which ...

If you’ve read my Java 101 tutorial introducing static classes and inner classes, you should be familiar with the basics of working with nested classes in Java code. In this associated tip, I ...