原文：http://docs.oracle.com/javaee/7/tutorial/doc/usingexamples008.htm
翻译：石卓林 shizhuolin@hotmail.com

2.8 Getting the Latest Updates to the Tutorial

Check for any updates to the tutorial by using the Update Tool included with the Java EE 7 SDK.

2.8.1 To Update the Tutorial Using NetBeans IDE

1. Open the Services tab in NetBeans IDE and expand Servers.
2. Right-click the GlassFish Server instance and select View Domain Update Center to display the Update Tool.
3. Select Available Updates in the tree to display a list of updated packages.
4. Look for updates to the Java EE 7 Tutorial (javaee-tutorial) package.
5. If there is an updated version of the Tutorial, select Java EE 7 Tutorial (javaee-tutorial) and click Install.

2.8.2 To Update the Tutorial Using the Command Line

1. Open a terminal window and enter the following command to display the Update Tool:

   updatetool

2. Select Available Updates in the tree to display a list of updated packages.
3. Look for updates to the Java EE 7 Tutorial (javaee-tutorial) package.
4. If there is an updated version of the Tutorial, select Java EE 7 Tutorial (javaee-tutorial) and click Install.

2.8 获取最新教程

使用Java EE 7 SDK中包含的更新工具检测所有的教程更新.

2.8.1 使用NetBeans IDE更新教程

1. 打开NetBeans IDE中的 服务 选项卡 并展开 服务.
2. 右击GlassFish服务器实例并选择查看域更新中心 以显示更新工具.
3. 选择树中的 有效更新 以显示可更新包列表.
4. 查找到Java EE 7 Tutorial (javaee教程)包.
5. 如果有教程的更新版本, 选择 Java EE 7 Tutorial (javaee教程)并单击 安装.

2.8.2 使用命令行更新教程

1. 打开一个终端窗口，输入以下命令以显示更新工具:

   updatetool

2. 选择树中的 有效更新 以显示可更新包列表.
3. 找到Java EE 7 Tutorial (javaee-tutorial)包.
4. 如果此教程有可更新版本, 选择 Java EE 7 Tutorial (javaee教程)并单击安装.