Can you inherit multiple interfaces?

1 Answer

Answer :

Yes. .NET does support multiple interfaces. 

Related questions

Description : What happens if you inherit multiple interfaces and they have conflicting method names?

Last Answer : It’s up to you to implement the method inside your own class, so implementation is left entirely up to you. This might cause a problem on a higher-level scale if similarly named methods from different interfaces expect different data, but as far as compiler cares you’re okay. To Do: Investigate 

Description : Can you inherit from multiple interfaces?

Last Answer : Yes

Description : What happens if you inherit multiple interfaces and they have conflicting method names?

Last Answer : It’s up to you to implement the method inside your own class, so implementation is left entirely up to you. This might cause a problem on a higher-level scale if similarly named methods from different interfaces expect different data, but as far as compiler cares you’re okay.  To Do: Investigate 

Description : Can you inherit multiple interfaces?

Last Answer : Yes. .NET does support multiple interfaces.

Description : Can you inherit multiple interfaces? 

Last Answer : Yes, why not. 

Description : What is the syntax to inherit from a class in C#? 

Last Answer : Place a colon and then the name of the base class. Example: class MyNewClass : MyBaseClass

Description : What is the syntax to inherit from a class in C#? 

Last Answer : Place a colon and then the name of the base class. Example: class MyNewClass : MyBaseClass

Description : When you inherit a protected class-level variable, who is it available to? 

Last Answer : Classes in the same namespace. 

Description : How do you inherit from a class in C#?

Last Answer : Place a colon and then the name of the base class. 

Description : Define what is the syntax to inherit from a class in C#?

Last Answer : When a class is derived from another class, then the members of the base class become the members of the derived class. The access modifier used while accessing members of the base class specifies ... syntax to inherit a class from another class In C# is as follows: class MyNewClass : MyBaseClass

Description : Write some code using interfaces, virtual methods, and an abstract class.

Last Answer : using System; public interface Iexample1 { int MyMethod1(); } public interface Iexample2 { int MyMethod2(); } public abstract class ABSExample : Iexample1, Iexample2 { public ABSExample( ... override void VIRTMethod2() { System.Console.WriteLine("VIRTMethod2 has been overridden"); } }

Description : Which of the following is/are correct with reference to Abstract class and interface ? (a) A class can inherit only one Abstract class but may inherit several interfaces. (b) An Abstract class can provide complete and default ... true (C) Both (a) and (b) are true (D) Neither (a) nor (b) is true

Last Answer : Answer: C

Description : Can multiple catch blocks be executed?

Last Answer : No, once the proper catch code fires off, the control is transferred to the finally block (if there are any), and then whatever follows the finally block. 

Description : Can you store multiple data types in System.Array?

Last Answer : No. 

Description : Can multiple catch blocks be executed for a single try statement?

Last Answer : No. Once the proper catch block processed, control is transferred to the finally block (if there are any). 

Description : Can you store multiple data types in System.Array?

Last Answer : No.

Description : Does C# support multiple-inheritance?

Last Answer : No. 

Description : Does C# supports multiple inheritance? 

Last Answer : No

Description : Can you increment multiple variables in a for loop control?

Last Answer : Yes – e.g. for (int i = 1; j = 2;i

Description : Can C# have multiple catch blocks?

Last Answer : Yes

Description : Can multiple catch blocks be executed for a single try statement?

Last Answer : No. Once the proper catch block processed, control is transferred to the finally block (if there are any).

Description : Can you store multiple data types in System.Array?

Last Answer : No.

Description : Does C# support multiple-inheritance?

Last Answer : No.

Description : Does C# support multiple inheritance? 

Last Answer : No, use interfaces instead.

Description : Can a class or a struct have multiple constructors?

Last Answer : Yes, a class or a struct can have multiple constructors. Constructors in C# can be overloaded.

Description : Can we execute multiple catch blocks in C#?

Last Answer : No. Once an exception has occurred it executes specific exception catch block and the control comes out.

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

Description : The concept of multiple inheritance is implemented in Java by A) extending two or more classes B) extending one class and implementing one or more interfaces C) implementing two or more interfaces D) both B and C

Last Answer : D) both B and C

Description : What si the difference between interface and abstractclass Select Answer:  1. interface contain only methods  2. we can't declare a variable for interface  3. interface contain only events  4. None  5. All

Last Answer : Ans : 2 The only Difference between Interface and Abstract class is we can declare a variable in abstract class but we can't declare in variable interface

Description : What is the lifespan for items stored in ViewState? Select Answer:  1. Item stored in ViewState exist for the life of the current page  2. Item stored in ViewState exist for the life ... of the current Applicaiton  4. Item stored in ViewState exist for the life of the current configuration

Last Answer : 1. Item stored in ViewState exist for the life of the current page AS any web application works on request and response basis ,so on every post backs, The data in control gets lost. To retain page ... control with data. The life cycle of the view state exist for life of current running page only. 

Description : Which one of the following tools is used to view the metadata information contained in a .NET assembly? Select Answer:  1. al.exe  2. ilasm.exe  3. vbx.exe  4. csc.exe  5. ildasm.exe

Last Answer :  5. ildasm.exe

Description : How would you ensure that all relevant registry entries were removed in the event that installation of your application failed?

Last Answer : You can ensure that registry entries are removed, as well as perform any other “clean-up” tasks, by creating an Installer class and writing the appropriate code in the Rollback event handler. Then create a new Custom Action and set the InstallerClass, and EntryPoint properties to appropriate values.

Description : Describe a general strategy for creating a setup project that terminates installation if a specific file is not already installed on the target machine.

Last Answer : First, create a file search to search the file system for the specific file. Then create a launch condition to evaluate the results of the search. You can connect the launch condition to ... in the search's Property property in the expression specified by the launch condition's Condition property. 

Description : What is the purpose of a bootstrapper application? When do you not need to create one?

Last Answer : A bootstrapper application automatically detects if Windows Installer is installed on the target machine. If Windows Installer is not present, it installs Windows Installer before proceeding with the rest ... Installer 1.5 already installed) or have had Microsoft Installer 1.5 installed previously.

Description : What is a native image? How do you create one?

Last Answer : A native image is a precompiled version of a .NET assembly. You can create a native image of your application by using the Ngen.exe utility.

Description : Describe XCOPY deployment. Under what conditions is it useful? When can it not be used?

Last Answer : XCOPY deployment is a simple method of deployment where the DOS command XCOPY is used to copy the application directory and any subdirectories to the target machine. You can use XCOPY ... an application requires a more complex deployment or references shared assemblies, you cannot use XCOPY.

Description : What is a shared assembly? How would you create one?

Last Answer : An assembly is an assembly of which only a single copy is installed per machine. This copy can be shared by multiple applications. To make an assembly a shared assembly, you must first assign it a strong name, and then install it to the global assembly cache.

Description : Briefly highlight the differences between imperative and declarative security as they pertain to code access security.

Last Answer : Imperative security is implemented by calling methods of Permission objects in code at run time. Declarative security is configured by attaching attributes representing permissions to classes ... request assembly-wide permissions using the Assembly (assembly) directive with declarative security.

Description : Explain how to retrieve information from the configuration file at run time. How would you store information in the configuration file at design time?

Last Answer : You must first create an instance of AppSettingsReader to read the configuration file. You can then call the GetValue method to read values represented in the configuration file. To add configuration ... used to retrieve the entry. The value can be changed between executions of the application.

Description : Describe how to use code to retrieve resources at run time.

Last Answer : You must first create an instance of the ResourceManager class that is associated with the assembly that contains the desired resource. You can then use the GetString method to retrieve string resources or the GetObject method to retrieve object resources.

Description : Describe how to sign your assembly with a strong name. Why would you want to do this?

Last Answer : To sign your assembly with a strong name, you must have access to a key file or create one with the strong name utility (sn.exe). You then specify the key file in the AssemblyInfo file and ... identity, a strong name is required if you want to install your assembly to the Global Assembly Cache.

Description : Explain how to use the PrintPreviewDialog control to display a preview of a printed document before it is printed.

Last Answer : You display a preview of a printed document with the PrintPreviewDialog control by first setting the PrintDocument property of the PrintPreviewDialog instance to the PrintDocument you want to preview, then by calling the PrintPreviewDialog.Show command to display the dialog box. 

Description : Explain the difference between Globalization and Localization.

Last Answer : Globalization refers to the application of culture-specific format to existing data. Localization refers to providing new culture-specific resources and retrieving the appropriate resources based on the culture setting. 

Description : Explain how to convert data in legacy code page formats to the Unicode format.

Last Answer : You can use the Encoding.Convert method to convert data between encoding types. This method requires instances of both encoding types and an array of bytes that represents the data to be converted. ... GetBytes method and can convert an array of bytes back to chars with the Encoding.GetChars method.

Description : Describe how to create localized versions of a form.

Last Answer : To create a localized version of a form, set the Localizable property to true. Then set the Language property to the language/region for which you want to create the localized form. Make ... be stored in resource files and loaded when the CurrentUICulture is set to the appropriate CultureInfo. 

Description : Explain how to use the HelpProvider component to provide help for UI elements.

Last Answer : You can provide either a HelpString or a help topic for UI elements with the HelpProvider. The HelpProvider provides HelpString, HelpKeyWord, and HelpNavigator properties for each control on the form. If ... particular element is displayed when the element has the focus and the F1 key is pressed.

Description : Briefly describe the five accessibility requirements of the Certified for Windows logo program.

Last Answer : The five requirements are o Support standard system settings. This requires your application to be able to conform to system settings for colors, fonts, and other UI elements. o Be ... information by sound alone. This requirement can be met by providing redundant means of conveying information.

Description : Explain how to use the Begin and End methods on a Web Service to make an asynchronous method call.

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Description : Briefly describe how to use the PrintDocument component to print a document. Discuss maintaining correct line spacing and multipage documents.

Last Answer : The PrintDocument class exposes the Print method, which raises the PrintPage event. Code to render printed items to the printer should be placed in the PrintPage event handler. The PrintPage event ... been printed, you must incorporate all logic for printing multiple pages into your event handler.

Description : Describe how to create a form or control with a nonrectangular shape.

Last Answer : Set the Region property of the form or control to a Region object that contains the irregular shape. You can create a Region object from a GraphicsPath object.