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Does C# support properties of array types?
Yes. Here's a simple example: using System;class Class1 {private string[] MyField;public string[] MyProperty {get { return MyField; }set { MyField = value; }}}class MainClass{public static int Main(string[] args) {Class1 c = new Class1();string[] arr = new string[] {"apple", "banana;c.MyProperty = arr;Console.WriteLine(c.MyProperty[0]); // "apple"return 0;}}
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Can abstract classes have constructors? If the answer is yes, when do they get called?
vaneet
- Jun 3rd, 2008
Yes, the abstract classes can have constructors.But they can be run only by the subclasses of the abstract class
kiran prasad
- Dec 4th, 2007
Yes, Abstract classes have constructors.They are called when their derived class objects are instantiated..For more information, READ : Chapter 4, Professional C# 2005 by Wrox publications...Thanks.
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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
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Interfaces provide implementation of methods
Skill/Topic: IntermediateA) TrueB) FalseExplanation: They only provide declaration on methods, events and properties
bhagyeshpatel
- Dec 26th, 2005
You should be aware, however, that it is not permitted to supply implementationsof any of the members of an interface.This is a line of C# Professional 3rd edition book pressed wroxPage No 124So it is not posible to implement methods in interface but u can implemement it on drived class.
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You can create the following using C#
Skill/Topic: BeginnerA) class librariesB) Stand alone GUI (Windows Forms) applicationsC) ASP.NET Web pagesD) Command Line applications
nikhilrawat23
- May 29th, 2008
you can create all four type of application through c#.just go through add new project----than u will find there some option-1.windowapplication2.window control liberary3.crystal report application4.c...
madhavi
- Nov 14th, 2006
We can create all the four types of applicationYou can refer VS.Net2005 --> New Project --> U can find all the templates to create above mentioned applications
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What is the difference between Cast and Convert int i1 = 5;double d1 = i1 + 0.99;int i2 = (int)d1; //result is 5i2 = Convert.ToInt32(d1);//result is 6Why does cast and convert in above example have different results.
nikhilrawat23
- May 28th, 2008
convert internally call parse method for conversion implicitly. If we are using convert for conversion and the object is null than it will return 0 value while if we r using cast then it will give nul...
ChandimaP
- Sep 23rd, 2007
Convert will correctly converts a number from one format to another if possible.However, Cast ignores the encoding format of the data type. It deals directly with the encoded binary values of the data...
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What are multiple delegates?Can 2 delegates in a class can refer to a same method?
nikhilrawat23
- May 27th, 2008
multiple delegates and multicast delegates both are diffrent terms with diffrent aspects.delegate having one property that it could have multiple delegates in it.it means single delegates contain mult...
sajeesh
- Oct 17th, 2007
Multi cast delegates means a delegate can hold more than one methods but not vice versa.
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Which keywords can do case insensitive string comparison in c#?
string.Equals("string number 1", "String NUMBER 1", StringComparison.CurrentCultureIgnoreCase) There is also a similar override of String.Compare().
nikhilrawat23
- May 27th, 2008
All things in above sample are right bt one correction is there.there should be OrdinalIgnoreCase instead of OriginalIgnoreCase....
Charlito
- Apr 3rd, 2008
String stringA = "This is a Test";string stringB = "THIS IS A TEST";bool sameString = stringA.Equals( stringB, StringComparison.OriginalIgnoreCase );
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Can you override private virtual methods?
No, moreover, you cannot access private methods in inherited classes, have to be protected in the base class to allow any sort of access.
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Classes Interface
Explain how many classes can an interface inherit?
Namedm
- May 22nd, 2008
Interface cannot inherit classes.Interfaces are used to define the methods and properties and the implementation is provided in the class that inherites interface
samalprakash83
- Apr 18th, 2008
an interface can not be inherited from a class......for further info contact +91-9986644137
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Threading
Write a very simple multi threaded program in C#. 1. The program should create two threads that each add data to the same list at the same time. Then after they are both done, print out the entire list. 2. So each thread should loop through 100 times adding the name of the thread doing the work to the list. For example, the first thread should add the string "thread1" to the shared list and the second...
JimmyJamJo
- May 17th, 2008
See code below. In practice, the Thread.Sleep() is required - otherwise each thread will complete its work in a single time-slice before the other gets a chance to start. An improvement would be to cr...
yogihanu
- Mar 15th, 2008
Copy and past the below mentioned code to get the answer:++++++++++//Start copy from hereusing System;using System.Collections.Generic;using System.Text;using System.Collections;using System.Threading...
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The base class Arrray belongs to the mamespace
Skill/Topic: IntermediateA) GlobalTypeB) ArraysC) System
Rajesh.A
- Apr 2nd, 2007
using System.Array.Tostring()
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What is the difference between // comments, /* */ comments and /// comments?
Single-line, multi-line and XML documentation comments.
ushalakshmi
- May 7th, 2008
// Is for Single-Line Comments./* */ Is for Multi-Line Comments./// For XML Documentation Comments
sahu
- Dec 14th, 2005
Ans:// for single comments/* */ for multiple cmments/// for XML documentation comments.
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You have an event handler called MyEvent and you want to link the click event of control, MyButton, to use MyEvent, what is the code that will like them together?
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What is the order of destructors called in a polymorphism hierarchy
A) Starts with derived class ends at base classB) Starts with base class ends at derived classC) The destructor of base can not becalledD) RandomlyExplanation: Uses Bottomup approach while calling Destructors from derived class
vshylaja
- Apr 7th, 2008
I believe "Sahu" is intentionally posting wrong answers to questions, in order to mislead others. Otherwise how could he be consistently getting the answers wrong almost always!!
samiksc
- Jan 10th, 2006
Answer (A) is correct. Destructors are called in reverse order of constructors. First destructor of most derived class is called followed by its parent's destructor and so on till the topmost class in...
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What is global pointer?
deepuingeek
- Apr 16th, 2008
Global Pointer Example Program The following walkthrough will illustrate a simple example of global pointers. There are actually two seperate source code files involved, ...
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Is it possible to have different access modifiers on the get/set methods of a property?
No. The access modifier on a property applies to both its get and set accessors. What you need to do if you want them to be different is make the property read-only (by only providing a get accessor) and create a private/internal set method that is separate from the property.
Vikas Yadav
- Apr 9th, 2008
Yes,it is possible for get and set to have different access modifiers,but one of the accessors must follow the access level of property.
Sunny
- Jul 7th, 2007
Also in new version of DOTNET it is allowed and to set the variable we can use protected as access modifier
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How to convert ocx into DLL
vshylaja
- Apr 7th, 2008
use the aximp.exe provided with the .NET framework. It stands for Microsoft .NET ActiveX Control to Windows Forms Assembly Generator.Generates a Windows Forms Control that wraps ActiveX controls defin...
WiredPunk
- Apr 17th, 2006
Use aximp.exe.
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Class Design
. Below is a set of birds and movements they can perform. Birds:Penguin:• hopping: moves 2 ft• flying: can't flyHawk:• hopping: can't hop• flying: moves 100 ft; won't fly if World.windSpeed > 40Robin:• hopping: moves 1 ft; won't hop if World.temperature < 0• flying: moves 20 ft; won't fly if World.windSpeed > 20Crow:• hopping: moves 1 ft; won't hop if World.temperature < 0• flying: moves 30 ft; won't...
vshylaja
- Apr 6th, 2008
using System;using System.Collections.Generic;namespace PCD{ public class World { public static int temperature = 0; // ce...
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.NET run time relies on the object reference counts to manage memory
A) TrueB) FalseExplanation: .Net run time relies on Garbage Collection to manage memory
vshylaja
- Apr 7th, 2008
One of the primary design goals of .NET is to overcome problems associated reference counting and orphaned objects etc that were prevalent in the COM world. .NET framework instead uses reference tracking for garbage collector to reclaim memory from unused objects.
samiksc
- Jan 10th, 2006
(B) False is the correct choice. .net runtime relies on reference tree and generations algorithm and does not rely on reference counts.
C# Interview Questions
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