You create the util package, along with classes in it.
您创建了util包，以及包中的类。
Test the polymorphism again with classes Shape, Rectangle, and Circle.
测试与类形，矩形，圈多态性一次。
Interfaces are not part of the class hierarchy, although they work in combination with classes.
接口不是类的层次结构的一部分，虽然他们结合班工作。
I took a few anthropology classes with her and they were great, inspiring.
我和她一起上了几堂人类学的课，这些课都很好，很振奋人心。
He's trying to learn English fast with evening classes twice a week.
他在努力通过一周上两次夜校来快速学习英语。
With this setting, you can access the backend classes without multiple password prompts.
有了该设置，您可以访问后台的类而无需多次提示输入密码。
With the three classes built, our example application is ready to roll.
有了这三个类之后，我们的示例应用程序大体完成了。
Identify which of these analysis classes have some kind of relationship with each other.
确定哪些分析类具有与其它类之间的关系。
Getting started with these new classes is easy.
开始使用这些新类非常容易。
With most of these frameworks, your generated classes will always match the entire structure.
对于这些框架中的大多数，使用它们时所生成的类将总是与整个文档结构匹配。
Business and law schools achieve good results with big classes.
商学院和法学院上的是大课，但是收效更佳。
Classes are declared with the keyword class.
类可以用关键字class来声明。
School means seven classes with seven different teachers.
在学校你每天要上七节课，常常七个老师轮番上阵。
Mapping classes with the class element.
用class元素对类进行映射。
Attach the service classes to the controller class with the web_service option.
用web_service选项将服务类与控制器类绑定在一起。
The new focus policy classes in Merlin have been designed with this purpose in mind.
在设计Merlin的这个新的焦点策略类时我们就已经想到这一点了。
With VB, you can use normal base classes.
有了VB之后，您就可以简单地使用基类来实现同样的功能了。
For the TestExample Project, you'll be working with the source code from four classes.
对于TestExample项目，您将使用来自四个类的源代码。
Wow! That's only eight analysis classes versus the thirty nine candidates we started with.
啊哈！在总共得30多个候选中，现在我们只需要面对选出的8个分析类。
You should definitely look at them if you work with numerous classes in your application.
如果您的应用程序中包含了大量类的话，那么您一定要查看这些示例用法。
As with abstract classes, you can define any number of method signatures.
对于抽象类，可以定义任意数目的方法签名。
This ability to work with existing classes is a very powerful feature.
这种可以使用现有类的能力是一项功能非常强大的特性。
You work with true object classes combining data and behavior.
使用真正的对象类将数据和行为组合在一起。
And the booked-out classes in the same city deal with gun rules, rather than shooting.
同时，该市被订爆的培训课程是关于持枪规则的，而非射击。
Being intoxicated with the beautiful view, a week had passed and there came the classes.
陶醉于美丽的风景中，不知不觉一星期过去了，接下来就是上课了。
So before you try to work with your classes, be sure to compile them.
因此在使用这些类之前一定要编译它们。
To start, you need a set of object classes to work with.
开始时，需要一套要处理的对象类。
To start, you need a set of object classes to work with.
开始时，需要一套要处理的对象类。
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