Why can’t you specify the accessibility modifier for methods inside the interface?

1 Answer

Answer :

They all must be public, and are therefore public by default.

Related questions

Description : Why can’t you specify the accessibility modifier for methods inside the interface?

Last Answer : They all must be public, and are therefore public by default. 

Description : Why can’t you specify the accessibility modifier for methods inside the interface? 

Last Answer : They all must be public. Therefore, to prevent you from getting the false impression that you have any freedom of choice, you are not allowed to specify any accessibility, it’s public by default.

Description : Describe the accessibility modifier “protected internal”. 

Last Answer : It is available to classes that are within the same assembly and derived from the specified base class.

Description : Describe the accessibility modifier “protected internal”. 

Last Answer : It is available to classes that are within the same assembly and derived from the specified base class.

Description : Describe the accessibility modifier protected internal. 

Last Answer : It’s available to derived classes and classes within the same Assembly (and naturally from the base class it’s declared in). 

Description : What is the default accessibility for members of an interface?

Last Answer : public

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 : Can properties have an access modifier?

Last Answer : Yes

Description : An operator declaration must include a public and static modifier, can it have other modifiers?

Last Answer : No

Description : What is the difference between the new operator and modifier?

Last Answer : The new operator creates an instance of a class whereas the new modifier is used to declare a method with the same name as a method in one of the parent classes.

Description : Define what is a New modifier?

Last Answer : The new modifier hides a member of the base class. C# supports only hide by signature.

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 : Can nested classes use any of the 5 types of accessibility?

Last Answer : Yes

Description : What is the default accessibility for members of a struct? 

Last Answer : private

Description : What is the default accessibility for a class?

Last Answer : internal for a top level class, private for a nested one. 

Description : What is private accessibility?

Last Answer : Access is restricted to within the containing class. 

Description : What is protected internal accessibility?

Last Answer : Access is restricted to types derived from the containing class or from files within the same assembly.

Description : What is internal accessibility?

Last Answer : A member marked internal is only accessible from files within the same assembly.

Description : What is protected accessibility? 

Last Answer : Access is restricted to types derived from the containing class. 

Description : What is public accessibility?

Last Answer : There are no access restrictions. 

Description : How do you specify a custom attribute for the entire assembly (rather than for a class) ?

Last Answer : Answer: Global attributes must appear after any top-level using clauses and before the first type or namespace declarations. An example of this is as follows: using System; [assembly : ... that in an IDE-created project, by convention, these attributes are placed in AssemblyInfo.cs.

Description : What’s the difference between an interface and abstract class?

Last Answer : Answer: An abstract class and Interface both have method only but not have body of method.The difference between Abstract class and An Interface is that if u call Ablstract class then u have to call ... type, Parameter type, Parameter Number all must be same . Only body of method can change. 

Description : What is an interface class?

Last Answer : Interfaces, like classes, define a set of properties, methods, and events. But unlike classes, interfaces do not provide implementation. They are implemented by classes, and defined as separate entities from classes. 

Description : Can an interface have properties?

Last Answer : Yes

Description : Can the members of an interface be private?

Last Answer : No. 

Description : What is an interface class? 

Last Answer : Interfaces, like classes, define a set of properties, methods, and events. But unlike classes, interfaces do not provide implementation. They are implemented by classes, and defined as separate entities from classes.

Description : What’s an interface class? 

Last Answer : It’s an abstract class with public abstract methods all of which must be implemented in the inherited classes.

Description : Define what is the difference between a class and an Interface?

Last Answer : 1. Abstract classes can have implementations for some of its members, but the interface can't have implementation for any of its members. 2. Interfaces cannot have fields whereas an ... 5. Abstract class members can have access modifiers whereas interface members cannot have access modifiers.

Description : Can an Interface contain fields?

Last Answer : No, an Interface cannot contain fields.

Description : Can you create an instance of an interface?

Last Answer : No, you cannot create an instance of an interface.

Description : Define what is an interface class?

Last Answer : It is an abstract class with public abstract methods all of which must be implemented in the inherited classes.

Description : Define what is the difference between Class And Interface?

Last Answer : Class is a logical representation of an object. It is a collection of data and related sub procedures with a definition. The interface is also a class containing methods which are not having any definitions. Class does not support multiple inheritances. But interface can support.

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

Last Answer : Every public Web method on a Web Service can be called either synchronously or asynchronously. To make an asynchronous call to a Web method, you call the method named Begin, where is the name of ... returned by Begin. This will allow you to retrieve the actual data returned by the Web method.

Description : Describe Break mode and some of the available methods for navigating in Break mode.

Last Answer : Break mode allows you to observe program execution on a line-by-line basis. You can navigate program execution in Break mode by using Step Into, Step Over, Step Out, Run To Cursor, and Set Next Statement.

Description : Can abstract methods override virtual methods? 

Last Answer : Yes

Description : Can a struct have methods?

Last Answer : Yes

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 : Class methods to should be marked with what keyword?

Last Answer : static

Description : Methods must declare a return type, what is the keyword used when nothing is returned from the method?

Last Answer : void 

Description : Can you override private virtual methods? 

Last Answer : No, moreover, you cannot access private methods in inherited classes, have to be protected in the base class to allow any sort of access. 

Description : Can you override private virtual methods?

Last Answer : No. Private methods are not accessible outside the class.

Description : Can you override private virtual methods?

Last Answer : No, private methods are not accessible outside the class.

Description : Define what is the difference between static and instance methods?

Last Answer : A method declared with a static modifier is a static method. A static method does not operate on a specific instance and can only access static members. A method declared without a static modifier is an ... can be explicitly accessed as this. It is an error to refer to this in a static method.

Description : Define what is methods?

Last Answer : A method is a member that implements a computation or action that can be performed by an object or class. Static methods are accessed through the class. Instance methods are accessed through instances of the class.

Description : Define what is the difference between “throw ex” and “throw” methods in C#?

Last Answer : “throw ex” will replace the stack trace of the exception with stack trace info of rethrowing point. “throw” will preserve the original stack trace info.

Description : Define what is the difference between “finalize” and “finally” methods in C#?

Last Answer : Finalize – This method is used for garbage collection. So before destroying an object, this method is called as part of the cleanup activity. Finally – This method is used for executing the code irrespective of exception occurred or not.

Description : State true or false for Java Program. i) Data members of an interface are by default final ii) An abstract class has implementations of all methods defined inside it. A) i-false, ii-false B) i-false, ii-true C) i-true, ii-false D) i-true, ii-true

Last Answer : C) i-true, ii-false

Description : Can we use “this” inside a static method in C#?

Last Answer : No. We can’t use “this” in a static method.

Description : f there are two identical products, one that has 100% accessibility and one that has 0% accessibility, a. the one with 0% accessibility will not sell at all because consumers can't find ... product with 100% accessibility will outsell the other 3 to 1 providing all other attributes are identical.

Last Answer : b. the product with 100% accessibility will outsell the other 2 to 1 providing all other attributes are identical.

Description : Define the methods in batchable interface?

Last Answer : Ans: Start: global Database.Querylocator start (Database.BatchableContext bc){} Execute: global void execute(Database.BatchableContext bc,List ){} Finish: global void finish(Database.BatchableContext bc) {}