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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Arrays in C# tutorials

  • An array is a collection of variables of the same type that are referred to by a common name.

  • In C#, arrays can have single or more dimensions, although the single-dimensional array is the most common. Arrays are used for a variety of purposes because they offer a convenient means of grouping together related variables.

  • For example, you might use an array to hold a record of the daily high temperature for a month, a list of stock prices, or your collection of programming books.

  • The principal advantage of an array is that it organizes data in such a way that it can be easily manipulated.

  • For example, if you have an array containing the dividends for a selected group of stocks, it is easy to compute the average income by cycling through the array.

  • Also, arrays organize data in such a way that it can be easily sorted.

  • Although arrays in C# can be used just like arrays in many other programming languages, they have one special attribute they are implemented as objects.

  • This fact is one reason that a discussion of arrays was deferred until objects had been introduced.

  • By implementing arrays as objects, several important advantages are gained, not the least of which is that unused arrays can be garbage-collected.

Declaring Single Dimensional Array

  • A Single-dimensional array is a list of related variables. Such lists are common in programming.

  • For example, you might use a one-dimensional array to store the account numbers of the active users on a network, array can also store the current batting averages for a cricket team.

  • Syntax:

  • type[] array-name = new type[size]

  • Here in the above syntax, type declares the element type of the array.

  • The element type determines the data type of each element that comprises the array.

  • Notice: The square brackets that follow type. They indicate that a one-dimensional array is being declared. The number of elements that the array will hold is determined by size.

Example of array declaration:

int[ ] no =new int[10];

or

int[ ] no;

no = new int[10];

 

First

Element

 

 

 

 

 

 

 

 

Last

Element

no[0]

no[1]

no[2]

no[3]

no[4]

no[5]

no[6]

no[7]

no[8]

no[9]

 

  • no[0] refers to the first element in the array.

  •   no[1] refers to the second element in the array.

  •   no[9] refers to the last element in the array.

Array initialization

  • All elements in an array variable cannot be initialized automatically.

  • Each element of an array has to be initialized separately, either in the declaration statement or using loop.

 

int[] no = new int[] = {20,30,25,23,21}; or

 

int[] no = new int[5] {20,30,25,23,21}; or

 

int no[] =new int[5];

no[0]=20;

no[1]=30;

no[2]=25;

no[3]=23;

no[4]=21;

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