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A char in C# is
Skill/Topic: BeginnerA) 8 bitB) 16 bitC) 32 bitExplanation: Unicode characters are supported in C#
aeomer
- Nov 6th, 2006
A char in c# is a 16 bit character from 0x0000 to 0xffff. However, it is not enough to state the reason for this is UNICODE.Reason:UNICODE is capable of accessing far more than 65536 characters. In po...
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What is indexer? where it is used plz explain
madhavi
- Nov 14th, 2006
Indexers Indexers permit instances of a class or struct to be indexed in the same way as arrays. Indexers are similar to propeties except that their accessors take parameters.In the followi...
Vamsi Chunduru
- Apr 12th, 2006
Indexer is a special syntax for overloading [] operator for a class. After defining an indexer, array syntaxes can be used for the class objects.
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Where we can use DLL made in C#.Net
We can use the .net DLLs only in the applications supporting .NET.
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You can inherit multiple interfaces in C#
Skill/Topic: IntermediateA) TrueB) FalseExplanation: A class can inherit multiple interfaces
chandrasoma
- Nov 20th, 2006
Question should be re-written as " Can C# classes implement multiple interfaces?". I think you implement interfaces rather than inherit them.
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What is the main difference between pointer and delegate with examples?
Fareed
- Nov 30th, 2006
Delegate to function--- is same as---- pointer to object.Delegates are function pointers.They are used when the function which needs to be called is not know at compile time.Pointers, on the other hand, are used to point to variables or object references in unsafe code. Thanx
prudhviram
- Sep 14th, 2006
Good answer! but u cant spend your time in giving all that information. Simply say Delegate is a strongly typed function pointer and pointer holds reference to a variable or pointer is a variable which holds the address of another variable.
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How do you inherit from a class in C#?
Place a colon and then the name of the base class. Notice that it's double colon in C++.
nitin
- Dec 11th, 2006
Lets us say there are 2 claases ,Class A and ClassB.ClassA -BaseClass,ClassB-derived class ClassA{}ClassB:ClassA(baseclass){}here we can say ClassB is derived from classA.Hope this is right.
sahu
- Dec 10th, 2005
Ans:Placing Colon(:)Let's exampleclass x{//code}class y:x(here drive class placing colon){//code}
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Attributes
Skill/Topic: IntermediateA) Are data typesB) Return typesC) Used to provide extra information for the compiler
Rajasekaran
- Dec 12th, 2006
Attributes are descriptive tags that provide additional information about programming elements such as types, fields, methods, and properties. Other applications, such as the Visual Basic compiler, can refer to the extra information in attributes to determine how these items can be used.
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How do you choose 1 entry point when C# project has more Main( ) method?
A) Not PossibleB) Using /Main along with class name in csc.exeC) By just providing the class name to csc.exe
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Can we use Friend Classes or functions in C# the way we use it in C++
Guest
- Jan 6th, 2007
In VB.Net, Friend keyword is an equivalent to internal of C#
Ashishtandon.e
- Jun 30th, 2006
No we can not use friend keyword but instead c# provide "internal" keyword for friend
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I have a class with constructor, if i throw an error inside the constructor what will become the object while initializing
Rohit Sharma
- Jan 12th, 2007
if you throw an error within the constructor of a class, your code will compile but the object will not be instantiated and will through an error. check this sample code:using System;using System.Coll...
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How to retrieve data from database for a particular period(ie..ex:jun 2006 to nov2006) using C#
Rohit Sharma
- Jan 12th, 2007
//Check the following example. I am using Orders table of Northwind database from SQL server.public Dataset MyFunction(){SqlConnection objConnection = new SqlConnection(ConnectionString)SqlCommand obj...
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How to retrive data between two dates(ex:12-6-2006 to 12-11-2006)using C#
Rohit Sharma
- Jan 12th, 2007
//Check the following example. I am using Orders table of Northwind database from SQL server.public Dataset MyFunction(){SqlConnection objConnection = new SqlConnection(ConnectionString)SqlComma...
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In which scenerio we use interfaces,abstract and concrete class?Which one is better and appropriate?Differentiate these three terms in depth.
saurabhd
- Jan 19th, 2007
Use following guidelines for each of the abstractions:Interface: -- If your child classes should all implement a certain group of methods/functionalities, but each of the child classes is free to prov...
kiran
- Dec 24th, 2006
Interface - used to define a skeleton. Classes who want to confirm to that skeleton implementsts the interfaceAbstract class - Use abstract class when you want to provide some functionality to the use...
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If we can'nt make the object of abstract class what is the use of defining of data members and non abstract functions in that abstract class?
Sreedhar
- Jan 25th, 2007
Its basically for Polymorphism, So that we can call same method on different classes based on the subtype.Say you implement a factory and get back the subclass requried, then u can call the method without any issue as all the subclassed implment the same abstract class.
prudhviram
- Sep 13th, 2006
Eventhough you cant create an instance of abstract class you can create an instance of its super class which inherits the members of the abstract class(sub class) and you can write you code in the dat...
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What are Namespaces
A) Naming convention used in .NetB) Group of classes categorized to avoid name clashC) None of the above
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C# Interview Questions
Ans