In this article, he dives into Local Variable Type Inference. Java SE 10 (March 2018) introduced type inference for local variables. Previously, declaring a local variable required a manifest ...

However, this is just one type of variable in Java. Understanding this is important, as we need to choose (declare) the type of variable when we first create it. This is because Java is ...

In Java, polymorphism results in code that is ... the compiled code that calls the method associated with the variable’s type and not its value. This technique is known as early binding.

Java has always had a weird syntax to declare variables. A manifest type declaration on the left side must polymorphically match up with the object type provided on the left hand side of the equation.

if there is no use of type compatibility between array types. Remember that in Java, for a reference variable of some type referring an object of its supertype is forbidden: arrows in Figure 8 ...

It's not very restrictive. However, rules are different from conventions. Java naming conventions for variables, methods and reference types are where things get a little more complicated. For example ...