The extension class loader (sun/misc/Launcher$ExtClass loader)

扩展类装入器（sun/misc/Launcher$ExtClassLoader）

youdao

Next, you need to create your Extension class, as shown in listing 5, which includes.

接下来，需要创建extension类，如清单5所示，包括以下内容。

youdao

Now you create the FunctionCall class, which is called by the Extension class and contains your custom methods.

现在将创建functioncall类，它是由extension类调用的且包含定制方法。

youdao

And you'll be working with obviously part of this class, Deb Levy but also with Deb Levy who is the, they had teaching fellow for the extension school.

而你们将显然参与到我们的课程中来，但也可以找，他是进修学校的助教。

哈佛公开课 - 幸福课课程节选

"Democrats agree that there should be permanent extension to the middle-class tax cuts, that there shouldn't be a permanent extension of tax cuts for millionaires and billionaires, " said White House press secretary Bill Burton.

WSJ: Democrats Gird for Tax-Relief Battle

And we would welcome in a heartbeat a willingness by Republican leaders in the House to schedule and pass -- schedule a vote on and pass an extension of the middle-class tax cuts.

WHITEHOUSE: Press Briefing

Last week, at the jobs summit, Chamber of Commerce CEO said, if you really want to create jobs, increase economic growth, you temporarily extend the 2001 and 2003 tax cuts -- temporarily -- versus the President is only calling for an extension of your middle-class tax cuts.

WHITEHOUSE: Press Briefing