This post explains how to use classes in Java to build objects and organize your code. Also learn: constructors, static methods, and more!

Examples of using nested classes in your Java programs; ... As shown in Listing 2, if you want to invoke a top-level class’s method from within an enclosed class, ...

Learn how to use synchronous and asynchronous callbacks in Java—including callbacks with lambda expressions, CompletableFuture, and more. Topics Spotlight: New Thinking about Cloud Computing ...

Inside of a main method or any other piece of Java code, the SimpleConsumerExample class can be instatiated according to traditional Java syntax rules: /* Java Consumer example using a class */ ...

Also, one class will need to call the other and then go through the proxy of the called class. Essentially, the first public method gets called from outside that class and starts a new transaction.