Package objects contain version information about the implementation and specification of a Java package. This versioning information is retrieved and made available by the ClassLoader instance ...

In the package directive’s absence, those classes and interfaces belong to the unnamed package (the directory the JVM regards as the current directory—the directory where a Java program begins ...

If you understand the concepts laid out in this functional Consumer interface example, you’re well on your way to mastering the update Java APIs. Consumer tutorial code Here is the code used in this ...