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Which of the following is used to denote comments in C#?
Skill/Topic: IntermediateA) /* */B) //C) ///Explanation: /// is used from XML documentation
sahilpopli
- Nov 10th, 2011
A) /*Is used for multiple
lines omments */
// and
B) // is used for singlr line comment -
IF a namespace isn't supplied, which namespace does a class belong to
Skill/Topic: IntermediateA) a nameless global namespaceB) SystemC) Windows
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1. Are there some features of C# language not supported by .NET?
Skill/Topic: AdvancedA) YesB) NoExplanation: For example some instances of operator overloading!
whbloodworth
- Jan 25th, 2008
With respect to multiple inheritance, I would have to say that the answer is "mostly" that C# does not support multiple inheritance. The "mostly" part does not take into accoun...
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Interface members can not be declared as
A) VirtualB) StaticC) PrivateD) All of the above
pankajbanga
- Feb 26th, 2007
Answer is all of the aboveinterface members are implicitly public, explicit modifiers are not allowed.
dan
- Mar 8th, 2006
Interface members are public by default. But we dont/cant specify modifiers to them so that we dont fall into the impression that thay can also be private or ..... They are public by default and we dont have to specify that!
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What is the difference between shadow and override
Override id used for variables and methods but override only used for methods.
whbloodworth
- Jan 25th, 2008
The best way, in my opinion, to understand the true meaning of the effects of using the "new" modifier in a virtual hierarchy is to think of it like this... The runtime wants to start at the...
whbloodworth
- Jan 25th, 2008
No, the VB.NET "shadow" is not exactly the same as the C# "new" override... even though it produces similar behaviour. To see the differences, look at the IL generated.
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All .NET code have to be CLS compliant
Skill/Topic: IntermediateA) TrueB) False
Sivavt
- Mar 26th, 2012
Not required. If you want your code to be CLS complaint use the annotation CLScompliant(true)
Ravi Kumar
- Dec 3rd, 2011
False All .Net code need not be CLS compliant if you are going to write all modules using single .Net language. However, if you are going to use different .Net language for different modules then you...
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What happens if we refer a variable which in not initialized in C#
A) Compiler throws warning messageB) Compiler throws error messageC) Compiles the application with out any problemExplanation: Variable needs to be initialized before use
John Jiang
- Jul 4th, 2008
There is no veriable in a class only fields or properties. when we say variables that means they are in a method. so it will throw a error!!!
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If we have 2 interfaces, say Ix and Iy, and also we have one method in both interfaces with same signature. Now we have to inherit a class from both interfaces so how to access the method of interface Ix or that of Iy.
DilpreetSachdev
- Mar 2nd, 2007
I think, while answering this question people are missing on the simple OO concepts. When we inherit from an Interface say X and it has a method say do() , what you are saying is that any class...
swatias
- Dec 23rd, 2006
We can inherit the methods of lx & ly interfaces using lx.method() and ly.method().Reference: http://msdn2.microsoft.com/en-us/library/ms228387(VS.80).aspx
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How do you create a pure virtual function in c#?
asaf122
- Jan 28th, 2010
As I know pure virtual doesn't exist in C# (it's C++ concept)If you are using abstract class you cannot make instance of this class but you can implement functions.
richa2008
- Dec 4th, 2008
User abstract modifier on method.Class must also be marked as abstract.An abstract method cannot have implementation.
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Multicast Delegate
What is multicast delegate? When it is used?
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When to use string classes
when we have string builder which are mutable why we need immutable string classes in C#.
Denial
- Aug 14th, 2013
String: String are immutable that is every time you make changes to a string object, the string is destroyed and a new string is created with modifications you applied to previous string. All this is ...
Sivavt
- Mar 25th, 2012
String is immutable, meaning, if there is any change in the string value, run time allocates new memory & assign it to the string reference. For the programmer, it looks like the same string but inter...
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What is managed code?
Skill/Topic: IntermediateA) Code managed ouside the ILB) Code which can't be managed by the ILC) Code written in VB.NETD) Code to be compiled by IL
levteck
- Aug 16th, 2010
C) Code written in VB.NET is managed code.??If it was written in Java it would be considered unmanaged.? If it is not compilable into IL to run on CLR than it is unmananged code.
vidyajnath
- Jul 5th, 2010
Code that targets the Common Language Runtime, the foundation of the .NET Framework, is known as Managed Code; Code that does not target the Common Language Runtime is known as Unmanaged Code.
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Who calls the main method ??
subramanyam1981
- Jan 28th, 2008
The CLR calls the main method. operating system has nothing to do with.
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What is the difference between const and static read-only?
The difference is that static read-only can be modified by the containing class, but const can never be modified and must be initialized to a compile time constant. To expand on the static read-only case a bit, the containing class can only modify it:-- in the variable declaration (through a variable initializer).-- in the static constructor (instance constructors if it's not static).
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Editorial / Best Answer
Answered by: Eddie Quiroz
- Sep 3rd, 2005
A const must be initialized at the time of its creation. A readonly field can be assigned to once in the class constructor allowing you to pass in the value at run-time. Declaring fields as const protects both you and other programmers from accidentally changing the value of the field. Also note that with const fields, the compiler performs some optimization by not declaring any stack space for the field. The readonly keyword is similar to const, with two exceptions. First, the storage of a readonly field is the same as a regular read-write field, and thus there is no performance benefit. Secondly, readonly fields can be initialized in the constructor of the containing class.
md.shahidkamal
- Aug 16th, 2010
The Constant Fields are those which cannot be changed in runtime. Its value has to be assigned at declaration time. const string strMyString="Constant Data" ; //This is valid.Once declared now the val...
chandra_123
- Apr 7th, 2009
As static read-only variables must be initialized in the static constructor (static constructor cannot have parameters and it cannot be called manually), it is efficient to used const variables over static read-only variables if you know the values at creation of these variables.
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Value Types are stored on the heap ..? Is it true/False ?
Skill/Topic: AdvancedA) TrueB) False
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By declaring a base class function as virtual we allow the function to be overridden in subclasses
A) TrueB) FalseExplanation: If a function is declared virtual it needs to be overridden in subclass
Sivavt
- Mar 29th, 2012
It is not mandatory for a derived class to override the virtual base method. Nevertheless, derived class can opt to override the virtual base method to redefine the functionality.
Dinesh M Yadav
- Aug 28th, 2011
The answer is A) TRUE. If you declare a virtual method in a class , its not mandatory to override it in the sub class. However, In case of abstract class, the answer would be B) False since if you ...
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Why strings are immutable?
Vasyliy Zvarydchuk
- Sep 6th, 2015
1) Much better for multi-threading programming
2) Simpler implementation simpler that String Builder.
3) Its impossible to make all operation upon string without changing it.Jeevan
- Apr 20th, 2012
People, please read the question before answering, don't just answer "Why" is the question - not "how".
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Why inheritance is not supported by structures??
Vasyliy Zvarydchuk
- Sep 5th, 2015
Structures are inherited from System.ValueType abstract class on IL level and code Console.WriteLine(base.ToString()) inside structure will return name of structure type.
Mohammad Sharib Khan
- Jan 7th, 2015
Http://stackoverflow.com/questions/1222935/why-dont-structs-support-inheritance
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Value of x
This is interview question,public void A() { int x; x = 8; x *= 4 + 8 / 2; } Given the above code, what is the value of "x"?options:- A) 3 B) 2 C)4 D) None
C# Interview Questions
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