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Mutable and Immutable classes
What is mean by mutable and immutable classes? Please give any examples.
Rambhupal Reddy
- Jun 13th, 2007
String is a immutable...stringbuilder is mutable..string builder can have namespace system.text....
terrypearson
- Mar 23rd, 2007
Mutable classes have the ability to be changed after instantiation. Immutable classes can not be modified after instantiation.A good example of this is the String class in Java. Once a string is creat...
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Whats an assembly?
samiksc
- Jan 12th, 2006
Assembly is a basic building block of an application. It is a smallest unit of deployment. It can be private or shared with other applications. There are three types of assemblies -- private, shared a...
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How u can create XML file?
Praveen Chandra
- May 25th, 2011
1.Right Click on your project in solution explorer2.Select XMLfile in "add new itel list" and3.Click on Add buttonNow u will found a XML file in your project
sourabh
- May 6th, 2006
XmlTextWriter textWriter=new XmlTextWriter("filename.xml"); //WriteStartDocument and WriteEndDocument methods open and close a document for writing textWriter.WriteStartDocument() /...
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What is delayed signing? How can we do a delayed signing for a dll which has to be shared?
karthik palanichamy
- May 9th, 2008
Delay signing allows you to place a shared assembly in the GAC by signing the assembly with just the public key. This allows the assembly to be signed with the private key at a later stage, when the d...
kavitha2007
- Mar 5th, 2007
Delay signing is the process of adding strong name to the assembly at the later stage of development.Signing an assembly means adding a strong name to the assembly.As the strong name is added at the l...
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What is the difference between string class and stringbuilder class?
maverick_dude
- Dec 2nd, 2007
String is immutable where as stringbuilder is mutable. That means: The value in a string can not be modified once it has been created. When you modify a string in your code, it actually creates a new ...
hanumesh_06
- Aug 10th, 2007
String class in immutable. Immutable is nothing but the value assigned to string cannot be changed.Stringbuilder class is mutable. mutable is nothing but the value assigned to stringbuilder can be changed.
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What is code-based security?
amitkumar316
- Feb 15th, 2008
Determining whether or not a piece of code is allowed to execute & what resources it can use during execution.
peeyush_jain
- Dec 5th, 2007
Code security is the approach of using permissions and permission sets for a given code to run. The admin, for example, can disable running executables off the Internet or restrict access to corporate database to only few applications.
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What are the limitations of XML serialization?
Vinayaka
- Jan 27th, 2016
Content length is more compared to jSon.
peeyush_jain
- Dec 5th, 2007
XML serialization has some limitations. It converts public property values and fields, but does not encode type information. Also it does not encode private properties and fields, which requires binar...
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What is the difference between data set and record set?
amitkumar316
- Feb 15th, 2008
Record is a fully connected approach where as dataset is a disconnected approach.Dataset can contain multiple tables where as if a recorset has to contain data from multiple tables it has to use a JOIN query.
nagasridhar.m
- Dec 11th, 2007
A recordset is considered connected because, depending on it's cursor type and other options, it remains connected to the source database as you use it. It has been a while but some options of a r...
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ADO.NET
What is ADO .NET? Define the Data providers and classes of ADO.net and its purpose with example?
sairam
- Oct 23rd, 2011
ADO.Net: Activex data obejct. By using ADO.NET data can be retrieved from one data source and saved in another. ADO.NET is a part of .NET framework architecture. A DATA PROVIDER is used for connect...
priyanka roy
- Aug 27th, 2010
ADO.Net: Activex data obejct. The most important section in ADO.NET architecture is "Data Provider". Data Provider provides access to datasource (SQL SERVER, ACCESS, ORACLE). ...
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Class Library
What is Class Library? Define its Benefit?
jsubha2009
- Dec 2nd, 2009
Class library gets converted to dll files if they do not have an entry point namely the public shared sub main()(in VB.NET).They contain methods,properties and other entities which can be used in another class when the library dll is refered with the namespace in the other class.
aa_reddy
- Oct 31st, 2008
A set of reusable objects which may be used within the context of a framework but may also be used as stand-alone objects. The .NET Framework class library is a library of classes, interfaces, and...
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Execute scalar
What is the purpose of Execute scalar method of Command object ?
varung4
- Dec 9th, 2008
Execute Scaler returns the value of first cell of the result. thats why mainly used to get the value of aggregate functions like sum,count,min,max etc.ThanksJpkVirus
sadhananayak
- Jun 10th, 2008
ExecuteScalar method is used to retrieve a single value (EX: aggregate value such as Count etc) from a database
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What is COM, DCOM objects in DotNet
Can some please answer this question in detail and also how they are going to be useful inDotNet
venuvaradhan
- Aug 5th, 2008
The dot net frameworks allow you to build serviced components that can use com+ services. These components of dot net framework runs in the manages execution environment of dot net framework that is s...
venuvaradhan
- Aug 5th, 2008
COM objects require installation on the machine from where it is being used and DCOM requires installation somewhere on the same network. Any COM object may participate in DCOM transactions. DCOM intr...
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Remoting
Explain the concept of Remoting.
jsubha2009
- Dec 2nd, 2009
Remoting is the concept of working in different application domains. In a net connected application http Protocols are stateless by default. To?bring in the objects?of different types and get thei...
yannam12
- Apr 8th, 2009
Remoting provides a framework that allows objects to interact one another accross application domains
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Garbage Collection in .Net
When we say that GC works on "heap" memory then how "stack" memory gets freed or deallocated? Can someone tell me the algorithm used by GC to free the memory?
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Can you give an example of when it would be appropriate to use a web service as opposed to a non-serviced .NET component
samiksc
- Jan 12th, 2006
A web service has the following characteristics:It communicates using open protocols like HTTPProcesses XML messages framed using SOAPMay be described using WSDLCan be discovered using UDDIAny applica...
Jitendra Kumar Thakur
- Aug 13th, 2005
Web Service is the method of sharing data without knowing which Operating System the client is using means Web Service is OS dependent whereas .NET component can be used only in .NET Technology.
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Can you explain what inheritance is and an example of when you might use it?
satyambabu53
- Jul 3rd, 2006
Inheritance means able to inherete the class from base class. The inherete class called derived class.The main advantage of the inheritance if any modification done origanl class safe.This is for reusable.
Iyyappan
- Jul 21st, 2005
The methods and procedures of one class is used by another class is named as Inheritence. Ex: Public Classs BaseClass Public Overridable Sub OverridingMethods() ...
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DotNet Interview Questions
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