到这里 Java 的 Hello, World! 入门程序已经到了简化，但在 Ron 眼里，该 JEP 提供的优化只是使 Java 更易于学习的第一步，像 System.out.println 这种长方法 ...

Next, open com.javaworld.sample.helloworld.Activator.java in the Eclipse Java editor. You will notice that you are now able to access the HelloService interface but not the HelloServiceImpl class.

Developers who create a runnable Java class, be it for a ‘Hello World’ demonstration or to kick off a fully featured enterprise application, will enjoy the following technical benefits when using ...