c# interview questions

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internal static void ReverseString(string str) 
{ 
   
  char[] charArray = str.ToCharArray(); 
  for (int i = 0, j = str.Length - 1; i < j; i++, j--) 
  { 
      charArray[i] = str[j]; 
      charArray[j] = str[i]; 
  } 
  string reversedstring = new string(charArray); 
  Console.WriteLine(reversedstring);

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Source: www.interviewbit.com

Tags: c#

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Contributed on Nov 23 2024

Aspirants Digital study

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c# interview questions

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/* Answer to: "c# interview questions" */

/*
  A great place to find interview questions related to C# is here:
  https://www.guru99.com/c-sharp-interview-questions.html
  You can 52 common questions related to C# and an additional 20 if
  you go here:
  https://hackr.io/blog/c-sharp-interview-questions
*/

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Source: www.guru99.com

Tags: c# c

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Contributed on Apr 16 2020

TigerYT

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C# interview questions

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16

1   :-  Explain difference between .NET and C# ?
2   :-  .NET Framework vs .NET Core vs .NET 5.0
3   :-  What is IL ( Intermediate Language) Code ?
4   :-  What is the use of JIT ( Just in time compiler) ?
5   :-  Is it possible to view IL code ?
6   :-  What is the benefit of compiling in to IL code ?
7   :-  Does .NET support multiple programming languages ?
8   :-  What is CLR ( Common Language Runtime) ?
9   :-  What is managed and unmanaged code ?
10  :-  Explain the importance of Garbage collector ?
11  :-  Can garbage collector claim unmanaged objects ?
12  :-  What is the importance of CTS ?
13  :-  Explain CLS ?
14  :-  Difference between Stack vs Heap ?
15  :-  What are Value types & Reference types?
16  :-  Explain boxing and unboxing ?
17  :-  What is consequence of boxing and unboxing ?
18  :-  Explain casting, implicit casting and explicit casting ?
19  :-  What can happen during explicit casting ?
20  :-  Differentiate between Array and ArrayList ?
21  :-  Whose performance is better array or arraylist ?
22  :-  What are generic collections ?
23  :-  What are threads (Multithreading)?
24  :-  How are threads different from TPL ?
25  :-  How do we handle exceptions in C#(try/catch)?
26  :-  What is the need of finally?
27  :-  Why do we need the out keyword ?
28  :-  What is the need of Delegates ?
29  :-  What are events ?
30  :-  What's the difference between Abstract class and interface ?
31  :-  What is a delegate and How to create a delegate ?
32  :-  Where have you used delegates ?
33  :-  What is a Multicast delegates ?
34  :-  What is a Event ?
35  :-  How to create a event ?
36  :-  Delegate vs Events.
37  :-  Why do we need OOP ?
38  :-  What are the important pillars of OOPs ?
39  :-  What is a class and object ?
40  :-  Abstraction vs Encapsulation?
41  :-  Explain Inheritance ?
42  :-  Explain virtual keyword ?
43  :-  What is overriding ?
44  :-  Explain overloading ?
45  :-  Overloading vs Overriding ?
46  :-  What is polymorphism ?
47  :-  Can polymorphism work with out inheritance ?
48  :-  Explain static vs dynamic polymorphism ?
49  :-  Explain operator overloading ?
50  :-  Why do we need Abstract classes ?
51  :-  Are Abstract methods virtual ?
52  :-  Can we create a instance of Abstract classes ?
53  :-  Is it compulsory to implement Abstract methods ?
54  :-  Why simple base class replace Abstract class ?
55  :-  Explain interfaces and why do we need it ?
56  :-  Can we write logic in interface ?
57  :-  Can we define methods as private in interface ?
58  :-  If i want to change interface what's the best practice ?
59  :-  Explain Multiple inheritance in Interface ?
60  :-  Explain Interface Segregation principle ?
61  :-  Can we create instance of interface ?
62  :-  Can we do Multiple inheritance with Abstract classes ?
63  :-  Difference between Abstract Class & Interfaces?
64  :-  Why do we need constructors ?
65  :-  In parent child which constructor fires first ?
66  :-  How are initializers executed ?
67  :-  How are static constructors executed in Parent child ?
68  :-  When does static constructor fires ?
69  :-  What is Shadowing?
70  :-  Explain method hiding?
71  :-  Shadowing vs Overriding ?
72  :-  When do we need Shadowing ?
73  :-  Explain Sealed Classes ?
74  :-  Can we create instance of sealed classes ?
75  :-  What are nested classes and when to use them ?
76  :-  Can Nested class access outer class variables ?
77  :-  Can we have public, protected access modifiers in nested class ?
78  :-  Explain Partial classes ?
79  :-  In What scenarios do we use partial classes ?
80  :-  What is SOLID ?
81  :-  What is the full form of SOLID ?
82  :-  What is the goal of SOLID ?
83  :-  Explain SRP with A example ?
84  :-  What is the benefit of SRP ?
85  :-  Explain OCP with a example ?
86  :-  What is the  benefit of OCP ?
87  :-  Can you explain LISKOV Principle and it's violation?
88  :-  How can we fix LISKOV Problem ?
89  :-  Explain Interface Segregation Principle ?
90  :-  Is there a connection between LISKOV and ISP ?
91  :-  Define dependency inversion ?
92  :-  What is higher level module and lower level module ?
93  :-  How does dependency inversion benefit, show with an example ?
94  :-  Will only Dependency inversion solve decoupling problem ?
95  :-  Why do developers  move object creation outside high lever module ?
96  :-  Explain IOC ( Inversion of Control) ?
97  :-  Explain Dependency Injection with an example ?
98  :-  Is SOLID, IOC and DI design pattern or Principle?
99  :-  Is only SOLID Enough for good code/ architecture ?

Popularity 10/10 Helpfulness 2/10 Language csharp

Source: Grepper

Tags: .net

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Contributed on Nov 04 2022

PrashantUnity

0 Answers Avg Quality 2/10

vagrant

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4

brew tap hashicorp/tap && brew install vagrant

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Source: www.vagrantup.com

Tags: shell shel

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Contributed on Aug 20 2021

Grieving Grivet

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vagrant

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Linux
Package manager install

Ubuntu/Debian

wget -O - https://apt.releases.hashicorp.com/gpg | sudo gpg --dearmor -o /usr/share/keyrings/hashicorp-archive-keyring.gpg
echo "deb [signed-by=/usr/share/keyrings/hashicorp-archive-keyring.gpg] https://apt.releases.hashicorp.com $(lsb_release -cs) main" | sudo tee /etc/apt/sources.list.d/hashicorp.list
sudo apt update && sudo apt install vagrant

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Source: Grepper

Tags: vagrant whatever

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Contributed on Nov 21 2024

CyberChef

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what time what equal 42

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int total = 0;

for (int outer = 1; outer <= 4; outer++) {
  for (int inner = 1; inner <= outer; inner++) {
    total += outer;
  }
}

System.out.println(total);

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Source: studio.code.org

Tags: time whatever

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Contributed on Nov 21 2024

Alex Ma

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delete file php if exists

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if (file_exists($file_path)) {                   
    unlink($file_path);
}

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Source: Grepper

Tags: delete-file exists php

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Contributed on Nov 21 2024

Ivan Londono

0 Answers Avg Quality 2/10

c# interview questions

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internal static void chkPalindrome(string str) 
{ 
   bool flag = false; 
   for (int i = 0, j = str.Length - 1; i < str.Length / 2; i++, j--) 
   { 
       if (str[i] != str[j]) 
       { 
           flag = false; 
           break; 
       } 
       else 
           flag = true; 
   } 
   if (flag) 
   { 
       Console.WriteLine("Palindrome"); 
   } 
   else 
       Console.WriteLine("Not Palindrome");

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Source: www.interviewbit.com

Tags: c#

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Contributed on Nov 23 2024

Aspirants Digital study

0 Answers Avg Quality 2/10

c# interview questions

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internal static void findallsubstring(string str) 
{ 
   for (int i = 0; i < str.Length; ++i) 
   { 
       StringBuilder subString = new StringBuilder(str.Length - i); 
       for (int j = i; j < str.Length; ++j) 
       { 
           subString.Append(str[j]); 
           Console.Write(subString + " "); 
       } 
   } 
}

Popularity 1/10 Helpfulness 1/10 Language csharp

Source: www.interviewbit.com

Tags: c#

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Contributed on Nov 23 2024

Aspirants Digital study

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c# interview questions

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internal static void ReverseWordOrder(string str) 
{ 
  int i; 
  StringBuilder reverseSentence = new StringBuilder(); 
   int Start = str.Length - 1; 
  int End = str.Length - 1; 
   while (Start > 0) 
  { 
      if (str[Start] == ' ') 
      { 
          i = Start + 1; 
          while (i <= End) 
          { 
              reverseSentence.Append(str[i]); 
              i++; 
          } 
          reverseSentence.Append(' '); 
          End = Start - 1; 
      } 
      Start--; 
  } 
   for (i = 0; i <= End; i++) 
  { 
      reverseSentence.Append(str[i]); 
  } 
  Console.WriteLine(reverseSentence.ToString()); 
}

Popularity 1/10 Helpfulness 1/10 Language csharp

Source: www.interviewbit.com

Tags: c#

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Contributed on Nov 23 2024

Aspirants Digital study

0 Answers Avg Quality 2/10

c# interview questions

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