As a class, String also has methods, meaning that it can provide useful data about itself such as its length. The same is true for other types, such as Arrays. Arrays in Java are variables that ...

It’s like a Java interface, which is a data type that’s disconnected from ... ranging from single variables to arrays or linked lists of objects containing multiple fields.

Type inference in Java happens when the JDK’s compiler, rather than the developer, assigns a data-type to a variable. As you can see in the following var examples, the left-hand side of the assignment ...

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 ...