In case of upcasting, the methods of the child class are called.
在案例上，孩子的类的方法被称为。
If you don't extend a parent class, the default parent is AnyRef, a direct child class of Any.
如果你不继承任何父类，默认的父亲是AnyRef, Any的一个直接子类。
You must subclass (that is, create a class that extends it) and create an instance of the child class.
必须创建子类(即，创建继承它的类)，并创建该子类的实例。
A Dictionary object always has a get method, whether an instance of Dictionary itself or of a child class.
Dictionary对象总是具有get方法，而不管它是Dictionary本身还是其子类的实例。
If you don't define a constructor in a child class, the parent constructor is transparently invoked on your behalf.
如果在子类中不定义构造函数，则parent构造函数代表您被显式调用。
Connect the classes: Click on Generalization on the palette, and then drag from the child class to the parent class.
连接这个类：单击调色板上的Generalization，然后从子类拖到父类。
Super class mapping support; attribute to column mapping defined in a super class should be available for its child class.
超类映射支持；超类中定义的属性到列的映射应该可用于它的子类。
I know you can override the non-abstract method in a child class and then use it through the object of the child class.
我知道你可以重写子类中的非抽象方法，然后用它的子类的对象。
A child class that extends an abstract class must implement all abstract methods in its parent or itself be declared abstract.
继承抽象类的子类必须实现在其父类或自身中声明为抽象的所有抽象方法。
The problem is that the reference would be incorrect if the class was extended and the call was made from the new child class.
问题在于，如果类进行了扩展并且调用来自新的子类，那么解析将是错误的。
This is defined in Listing 7, which shows the ActivityStreamsObject and the author class, which is a child class of ActivityStreamsObject.
这一切都定义在清单7中，其中展示了ActivityStreamsObject和作者类，后者是前者的一个子类。
Joined table: (Optional) the child class is mapped to a table that has a foreign key relationship to the table to which the parent is mapped.
联合表：(可选)将子类映射到与父类映射到的表具有外键关系的表。
In class Designer, you can allow members such as methods and properties in a child class to override members inherited from a base class.
在类设计器中，您可以允许子类中的方法和属性等成员重写从基类继承的成员。
Responsible for the daily management of the Department of market operation and for parent-child class sizes campaign to promote the project.
全面负责早教部市场运作和日常管理，负责早教部的大中小型宣传活动及亲子课的项目推广；
If I can figure out a way to force the child class (PartDb) to tell the parent class the value of this SQL string, I can pull this method up as well.
如果能够迫使子类(PartDb)把这个sql字符串的值告诉父类，就可以把这个方法提升到父类中。
In other words, you could pass an instance of a DictionaryIO child class, such as XmlDictionaryIO, to Dictionary and change the way that data is saved and retrieved at run time.
换句话说，可以将dictionaryio子类(比如XmlDictionaryIO)的实例传递给Dictionary，并更改运行时保存和检索数据的方法。
Child piano class most was once a week or twice a week, after the child class which has accepted certain knowledge instilled into, it requires certain time to digestion and absorption.
现在的儿童钢琴课多数是一周两节或一周一节，孩子课上接受了一定的知识灌输后，就需要一定的时间进行消化、吸收。
Implementation hierarchy works the same way in Scala: We can apply final to the method to prevent a child class from overriding it or to the class declaration itself to prevent derivatives.
实现层次结构在Scala中的效果是相同的：我们可以向方法应用final来防止子类覆盖它，也可应用于类声明本身来防止继承。
To model inheritance on a class diagram, a solid line is drawn from the child class (the class inheriting the behavior) with a closed, unfilled arrowhead (or triangle) pointing to the super class.
为了在一个类图上建模继承，从子类(要继承行为的类)拉出一条闭合的，单键头(或三角形)的实线指向超类。
The class differences in child rearing are growing—a symptom of widening inequality with far-reaching consequences.
抚养孩子方面的阶级差异正在增大——这是不平等加剧的一个征兆，具有深远的影响。
If you observed a four-year-old child, for example, my daughter is 4 years old; you might read up on Piaget's stages of cognitive development we covered those in class.
如果你观察一个四岁的孩子，例如我四岁的女儿，你可能要先研读皮亚杰的认知发展阶段理论，这一理论是我们在课堂上讲过的。
The class differences in child-rearing are growing—a symptom of widening inequality with far-reaching consequences.
在抚养孩子方面的阶级差异正在扩大——这是不平等扩大的一个表现，具有深远的影响。
Middle-class families contract with a puller to take a child to school and pick him up; the puller essentially becomes a family retainer.
中产阶级家庭与车夫签订合同，让他送孩子去学校以及接孩子放学。车夫实际上变成了一位家仆。
The teacher told each child in the class to bring along a plastic bag with a few potatoes.
老师告诉班上的每个孩子带一个塑料袋和一些土豆。
Indeed, Ding is only the seventh heaviest child in her class.
实际上，丁薇是她班七个超重小孩中的其中一个。
Class a is on the classpath of the system class loader, and a's superclass, B, is on the classpath of a user-defined class loader, which is a child of the system class loader.
类a在系统类装入器的类路径中，而A的超类b，在用户自定义的类装入器的类路径中，这个类装入器是系统类装入器的孩子。
The class on child and adolescent psychopathology sends them to the university's child study center to observe a clinician evaluating a child, after which they write up their own assessments.
在儿童与青少年神经病理学学习班中，学生会被送到学校的儿童研究中心，先观察医生如何对儿童进行评估，然后他们详细写下自己的看法。
Web modules within the J2EE application are loaded using a WAR class loader that is a child of the application class loader for the enterprise application containing the Web module.
J2EE应用程序中的Web模块通过war类加载器来加载，这个类加载器是企业应用程序中的应用程序类加载器的一个子类。
The extension class loader (also known as the standard extensions class loader) is a child of the bootstrap class loader.
扩展（extension）类装入器（也称作标准扩展 类装入器）是引导类装入器的一个孩子。
The extension class loader (also known as the standard extensions class loader) is a child of the bootstrap class loader.
扩展（extension）类装入器（也称作标准扩展 类装入器）是引导类装入器的一个孩子。
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