Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

In Java, nested classes are categorized as either static member classes or inner classes. ... using the static keyword. Here’s an example of a static member class declaration: ...

If you need to control access to certain pieces of data in a class when writing multithreaded applications, see how you can use the volatile keyword to get a similar effect as using the ...

To create a global constant shared by every instance of a class, you combine Java's static and final keywords. The static keyword means the value is the same for every instance of the class. Final ...

How to use Java’s var keyword Packaged as part of the 2018 version 10 release, the Java var reserved word introduced type inference to the strongly typed Java programming language. Type inference in ...

However, “string” is not a keyword in java but is actually a class. You don’t really need to know what this means, though our Java beginner course will teach you the basics.