C Sharp

1. An Overview of C# 2. OOP 3. C# Environment 4. IDE 5. Basic Requirement 6. Comments 7. My first program 8. Line Break 9. Escape Sequence 10. Identifiers 11. Variables 12. Datatypes 13. Range of datatypes in C# 14. Declare Variables 15. Reserved Key Words 16. Console.Write() 17. Chained & Embedded state 18. Prog.to print sum of 2 nos 19. Console.ReadLine() 20. Prg.to print sum & average 21. Area & Perimeter of Rectangle 22. Area Circumference of Circle 23. Prg.for Simple Calculator 24. Operatos in C# 25. Ex. Of Operators 26. Prg. to Swap two numbers 27. Hierarchy of Operators 28. if( ) statement 29. Prg.to check +ve,-ve or zero 30. if..else statement 31. Prg.to check Odd or Even 32. Prg.to print larger of 2 nos 33. Prg.to print largest of 3 nos 34. Prg.to check divisibility 35. Prg.to check print range 36. for. . . loop statement 37. prg.to print series of nos 38. Prg.to check divisibility 39. prg.to print sum of series 40. Prg.to print Pyramid 41. prg.for Factorial 42. prg.to fill screen 43. prg.for largest/smallest no 44. prg.to print reverse no 45. prg.to add each digit 46. prg.for sum of Factorial 47. prg.for fibonacci series 48. prg.to check Prime nos 49. prg. Prime no from 1 to 100 50. prg.Specified Prime nos 51. while( ) statement 52. do. . While statement 53. goto statement 54. break & continue statement 55. switch case statement 56. Array in C# 57. print reverse order using array 58. Ascending/Descending order 59. prg.to search no in Array 60. Multidimensional arrays 61. String in C# 62. String with spaces 63. prg.to print string in reverse 64. prg.to count A,E,I,O,U vowel 65. User Define Methods 66. Methods program example 67. General Purpose Programs 68. Loan & EMI calculation prg. 69. Table print prg. 70. Leap year program 71. lower to UPPER case prg. 72. Age Distribution prg. 73. Bank note calculation prg. 74. Simple Interest prg. 75. Compound Interest prg. 76. Simple Depreciation prg. 77. Reducing bal.Depreciation prg. 78. Marksheet prg. 79. Income Tax prg. 80. Time calculator prg. 81. Distance converter prg. 82. Volume Air Calculation prg. 83. Time to fill Water Tank prg. 84. Salary Calculation prg. 85. Total Sale Calculation prg. 86. Male/Female pecentage prg. 87. Library Rent prg. 88. Office Expance prg. 89. Total Salary Calculation prg. 90. Profit or Loss prg. 91. Total Profit/Loss prg. 92. Virtual Function . 93. C# Interview Part1 94. C# Interview Part2 95. C# Interview Part3 96. C# Interview Part4 97. C# Interview Part5 98. C# Interview Part6 99. C# Interview Part7 100. C# Interview Part8 101. C# Interview Part9 102. C# Interview Part10 103. C# Interview Part11 104. C# Interview Part12 105. C# Interview Part13 106. C# Interview Part14 107. C# Interview Part15
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C# Interview Questions and Answers Part 10


91. What is the role of the DataReader class in ADO.NET connections?

  • It returns a read-only dataset from the data source when the command is executed.


92. What does the This window show in the debugger?

  • It points to the object that is pointed to by this reference. Objectís instance data is shown.


93. Describe the accessibility modifier protected internal?

  • It is available to derived classes and classes within the same Assembly (and naturally from the base class it is declared in).


94. What is an interface class?

  • It is an abstract class with public abstract methods all of which must be implemented in the inherited classes.


95. What is a multicast delegate?

  • It is a delegate that points to and eventually fires off several methods.


96. What is the difference between directcast and ctype?

  • DirectCast is used to convert the type of an object that requires the run-time type to be the same as the specified type in DirectCast.

  • Ctype is used for conversion where the conversion is defined between the expression and the type.


97. Is C# code is managed or unmanaged code?

  • C# is managed code because Common language runtime can compile C# code to Intermediate language.


98. What are the different types of Caching?

  • There are three types of Caching :

  • Output Caching: stores the responses from an asp.net page.

  • Fragment Caching: Only caches/stores the portion of page (User Control)

  • Data Caching: is Programmatic way to Cache objects for performance.


99. What are the features of abstract class?

  • An abstract class cannot be instantiated, and it is an error to use the new operator on an abstract class.

  • An abstract class is permitted (but not required) to contain abstract methods and accessors.

  • An abstract class cannot be scaled.


100. What is the difference between console and window application?

  • A console application, which is designed to run at the command line with no user interface.

  • A Windows application, which is designed to run on a userís desktop and has a user interface.

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