When a Java program is executed, one or more class loaders locate and load all the classes that are needed ... visibility depends on the class loader hierarchy and the classpath, and it can ...

Java does enable the option to mark a class as final to eliminate ... the integrity of the class hierarchy. Enhance switch statements. Sealed classes allow for exhaustive checking in switch statements ...

Single inheritance and multiple inheritance How to use the extends keyword in Java Understanding Java class hierarchy When to ... Categories are described by classes. Java supports single ...

While it seems so basic that it wouldn't require a mention, there's a basic and often violated software design principle pertaining to Java method modifiers ... within the same class hierarchy. It ...