The Java Tutorials have been written for JDK 8.Java教程是为JDK 8编写的。Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available.本页中描述的示例和实践没有利用后续版本中引入的改进，并且可能使用不再可用的技术。See Java Language Changes for a summary of updated language features in Java SE 9 and subsequent releases.有关Java SE 9及其后续版本中更新的语言特性的摘要，请参阅Java语言更改。
See JDK Release Notes for information about new features, enhancements, and removed or deprecated options for all JDK releases.有关所有JDK版本的新功能、增强功能以及已删除或不推荐的选项的信息，请参阅JDK发行说明。
Which classes can an applet extend?
For what do you use the start() method?
True or false: An applet can make network connections to any host on the internet.
How do you get the value of a parameter specified in the JNLP file from within the applet's code?
Which class enables applets to interact with JavaScript code in the applet's web page?
True or False: Applets can modify the contents of the parent web page.
The Exercise applet's parent web page has a JavaScript variable called memberId. Write the code to set the value of the memberId equal to "123489" in the applet's start method.