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Which of the following is not a subclass of Value Type class
A) EnumerationsB) User defined value typesC) Boxed value typesExplanation: Boxed value types are of reference types
vshylaja
- Apr 7th, 2008
Boxed types are those types that have been converted from being a value type to a reference type. So once they are boxed, they cease to be a value type and become a reference type instead.Answer is C.
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Constructor is the method which is implicitly created when ever a class is instantiated. Why?
Vikas Yadav
- Apr 5th, 2008
Only default constructor is called automatically and that is to only to zeroed down the data types you have declared in your class,and that is for avoiding initialization error for your class...
vct
- Jan 15th, 2007
A default constructor is implicitly created to assign instance data using any assignments provided in the class definition. In this case all instances of the class start out with the same initial values
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How do you create class diagram for .net code class?
Vikas Yadav
- Apr 5th, 2008
Just right click on the .cs file and select the option view class diagram.A diagram file .cd will be generated.Further u can add method to the .cd file and extract interface etc from it.
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Can you allow class to be inherited, but prevent the method from being over-ridden?
Yes, just leave the class public and make the method sealed.
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Which is not cls compliant built in value type?
Intushortdecimalenum
Vikas Yadav
- Apr 2nd, 2008
sbyte(System.SByte)ushort(System.UInt16)uint(System.UInt32)ulong(System.UInt64)are non-cls compliant .
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What does the volatile modifier do
A) The value of the object is written immediately on assignmentB) The value is lost after the system reads it.C) The system stored the value until the end of all current threadsD) The system always reads the current value of a volatile object at the point it is requested
nisha.Chopra
- Mar 30th, 2008
Ans - A and DWhenever a volatile is requested, the system returns the current value at the time of the request.All assignments are written to the object immediately. Common usage of the volatile...
naveentej
- Jan 7th, 2006
Ans: A, DThe system always reads the current value of a volatile object at the point it is requested, even if the previous instruction asked for a value from the same object. Also, the value of the ob...
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What is the C# equivalent of System.Single
A) Float (16-bit)B) Float (32-bit)C) Float(64-bit)
nisha.Chopra
- Mar 30th, 2008
Ans : BSingle is a 32-bit single precision floating-point type that represents values ranging from approximately 1.5E-45 to 3.4E+38 and from approximately -1.5E-45 to -3.4E+38 with a precision of 7 decimal digits
naveentej
- Jan 7th, 2006
Ans: Float 32 bite.g. float i = 6.8F; // or 6.8fBy default, a real numeric literal on the right-hand side of the assignment operator is treated as double. Therefore, to initialize a float variable use...
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The following is a correct call to the Main() function
Skill/Topic: BeginnerA) static void Main()B) static Main(void)C) Main()
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What is the difference between the System.Array.CopyTo() and System.Array.Clone()?
The first one performs a deep copy of the array, the second one is shallow.
dotnetasit
- Feb 21st, 2008
I felt the need of this posting because I have seen postings (not only in this forum but also in many others) saying that "CopyTo() makes a deep copy and Clone() makes a shallow copy." ...
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Which Variable type is best to choosen for accepting Null Values?
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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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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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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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How to retrieve an image from sql server into Image Control using C#
manoj_job
- Jan 21st, 2008
First save the image in a particular location(eg. c:Imagefirst.jpg) , in sql server save the full path of the image,then access it uisng C#..
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The assembly class is defined in
A) System.ReflectionB) SystemC) System.InteropServices
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What is the output of Vectors.RemoveAt(1)
A) Removes the object whose key is 1B) Removes the object whose value is 1C) Removes the object at position 1
Kal_CSharp
- Jan 16th, 2008
Correct Answer: CRemoves the object at postion 1. Vectors.RemoveAt(int index); Default index value is 0. If the default value is not changed for it, it removes the second element from the collection.
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Why does DllImport not work for me?
All methods marked with the DllImport attribute must be marked as public static extern.
Robertxie
- Jan 6th, 2008
It works perfectly. You can find the dialogue window by using "ALT+Tab" keyRobert
jbanx
- Apr 17th, 2007
Following is the example to use it properly This is from msdn for more visithttp://msdn2.microsoft.com/en-us/library/system.runtime.interopservices.dllimportattribute.aspxusing System;using System.Run...
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What is side by side execution?How is it related to assemblies?
maverick_dude
- Nov 30th, 2007
Side-by-side execution is the ability to install multiple versions of code so that an application can choose which version of the common language runtime or of a component it uses. Subsequent installa...
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The condition for If statement in C# is enclosed with in
A) ( )B) { }C) [ ]
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Why do I get an error (CS1006) when trying to declare a method without specifying a return type?
If you leave off the return type on a method declaration, the compiler thinks you are trying to declare a constructor. So if you are trying to declare a method that returns nothing, use void. The following is an example: // This results in a CS1006 errorpublic static staticMethod (mainStatic obj)// This will work as wantedpublic static void staticMethod (mainStatic obj)
skmeer
- Oct 29th, 2007
If your method does not have any return type then mention void before that method or return 0
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