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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 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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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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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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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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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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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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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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.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.
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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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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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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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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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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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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 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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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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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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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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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.
C# Interview Questions
Ans