Arrays in Java are variables that contain multiple values. These let you store things like lists of high scores or phone numbers and can also be organized, counted, and manipulated in other ways.

Java SE 10 introduced var as the type of a local variable declaration and a lambda formal parameter. The compiler treats var as an identifier with special meaning, but it isn’t considered to be ...

You examined local variables, method parameters, and variable scope. You learned how to add data to classes using instance variables, and how that data is contained in each instance.

Null pointer exception is an “exception” (error) that is particularly common when programming in Java. For a beginner, this is a confusing and daunting message to receive, but it can be just ...

Final means the variable can't change. That's why global constants in Java use the static and final keywords. Example of static and final in Java Here's a static final example to further demonstrate ...

Java SE 10 (March 2018) introduced type inference for local variables. Java Language Architect Brian Goetz explains the feature.