You need to select a class that is optimized for key-based item retrieval from both small and large collections. Which class should you choose?()
A.OrderedDictionary class B.HybridDictionary class C.ListDictionary class D.Hashtable class
单项选择题You are developing a custom-collection class.You need to create a method in your class. You need to ensure that the method you create in your class returns a type that is compatible with the Foreach statement. Which criterion should the method meet?()
A.The method must return a type of either IEnumerator or IEnumerable. B.The method must return a type of IComparable. C.The method must explicitly contain a collection. D.The method must be the only iterator in the class.
单项选择题最近,您已完成创建的应用程序使用应用程序配置文件。 此配置文件包含一段名为 EmployeeSection,其中包含雇员的元素。 您需要查看 EmployeeSection 元素的内容。 您需要确保 EmployeeSection 元素输出到控制台及其内容。 你应该做什么?()
A. B. C. D.
单项选择题You need to identify a type that meets the following criteria: Is always a number. Is not greater than 65,535. Which type should you choose?()
A.System.UInt16 B.int C.System.String D.System.IntPtr
单项选择题You are developing an application for a client residing in Hong Kong.You need to display negative currency values by using a minus sign.Which code segment should you use?()
A.A B.B C.C D.D
单项选择题您当前正在使用 ClickOnce 部署的 Certkiller.com 的在互联网上上创建的清单激活的应用程序。网络管理员通知您每个应用程序已经以确定其名称、 版本、 区域性和请求的权限。您需要确保您正在创建的应用程序使用命令行,以显示所需的信息。你应该做什么?()