单选题You want to provide a tool that allows users quick access to form modules, by listing them in an Explorer-style interface. Which reusable component do you use?（）A ActiveX controls B Calendar Class C Standard Object Library D Picklist Class E Wizard Cla

第1题：

You want a class to have access to members of another class in the same package. Which is the most restrictive access that accomplishes this objective？（）  

• A、 public
• B、 private
• C、 protected
• D、 transient
• E、 default access

第2题：

You want to limit access to a method of a public class to members of the same class. Which access accomplishes this objective？（）  

• A、 public
• B、 private
• C、 protected
• D、 transient
• E、 default access

第3题：

You are developing a Hotel Booking application for a travel company. The users request a wizard-style interface for this application. How could you satisfy this requirement?（）

• A、Reference the Object Iron packages in your form module. 
• B、Write an HTML interface, and invoke it from your form module. 
• C、Include the Wizard class reusable component in your application. 
• D、Build a customized wizard using tab canvases and a horizontal toolbar canvas.

第4题：

You are creating a job class. You want access to the detailed information for all the runs of each job in the class and every operation performed on every job in the class. Which setting will you use for the LOGGING_LEVEL parameter？（）

• A、 LOGGING_OFF
• B、 LOGGING_RUNS
• C、 LOGGING_FULL
• D、 LOGGING_NULL

第5题：

You use Microsoft .NET Framework 4 to create a Windows Forms application. You add a new class named Customer to the application. You select the Customer class to create a new object data source. You add the following components to a Windows Form: A BindingSource component named customerBindingSource that is data-bound to the Customer object data source. A set of TextBox controls to display and edit the Customer object properties. Each TextBox control is data-bound to a property of the customerBindingSource component. An ErrorProvider component named errorProvider that validates the input values for each TextBox control. You need to ensure that the input data for each TextBox control is automatically validated by using the ErrorProvider component. Which two actions should you perform?（）

• A、 Implement the validation rules inside the Validating event handler of each TextBox control by throwing an exception when the value is invalid.
• B、 Implement the validation rules inside the TextChanged event handler of each TextBox control by throwing an exception when the value is invalid.
• C、 Implement the validation rules inside the setter of each property of the Customer class by throwing an exception when the value is invalid.
• D、 Add the following code segment to the InitializeComponent method of the Windows Form.   this.errorProvider.DataSource = this.customerBindingSource;
• E、 Add the following code segment to the InitializeComponent method of the Windows Form.    this.errorProvider.DataSource = this.customerBindingSource.DataSource;    this.errorProvider.DataMember = this.customerBindingSource.DataMember;

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第13题：

Given an ActionEvent， which method allows you to identify the affected Component？（）  

• A、 Public class getClass（）
• B、 Public Object getSource（）
• C、 Public Component getSource（）
• D、 Public Component getTarget（）
• E、 Public Component getComponent（）
• F、 Public Component getTargetComponent（）

第14题：

Which object is added to a form module when you copy the reusable calender class?（）

• A、List icon 
• B、Object group 
• C、PL/SQL library 
• D、Key-Listval trigger 

第15题：

You want to provide a tool that allows users quick access to form modules, by listing them in an Explorer-style interface. Which reusable component do you use?（）

• A、ActiveX controls 
• B、Calendar Class 
• C、Standard Object Library 
• D、Picklist Class 
• E、Wizard Class 
• F、Navigator Class

第16题：

You are developing a Web application to display products. Products are displayed on different pages on your Web site. You want to create a user control to manage the display of products. You need a default visual implementation of the UI of the user control. In addition, you need to provide developers with the flexibility to change the layout and controls of the UI. Which three actions should you perform? （）

• A、Apply the TemplateContainerAttribute to a property of type ITemplate. Pass the type of the template's naming container as the argument to the attribute.
• B、Apply the TemplateContainerAttribute to the user control's class declaration.
• C、Implement a property of type INamingContainer in the user control's code-behind class.
• D、Implement a property of type ITemplate in the user control's code-behind class.
• E、Define a new class that inherits from the ITemplate interface. Implement the InstantiateIn method of the ITemplate interface.

第17题：

You use Microsoft .NET Framework 4 to create a Windows Forms application. The application includes a RichTextBox control and a ListBox control. The ListBox control is populated with a list of valid file names. The application allows users to drag a ListBox item to the RichTextBox control. You need to provide a visual indication that a file that is dragged can be dropped on the RichTextBox control. What should you do?（）

• A、 Use a DoubleAnimation class.
• B、 Use a Storyboard animation class.
• C、 Use the DragDropEffects enumeration.
• D、 Use the DragAction enumeration.

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