C++ Programming

1. Computer Programming 2. History of Prog.Language 3. Introduction to C++ 4. OOPS 5. Features of C++ 6. Starting Turbo C++ 7. C++ Tokens 8. Basic requirment of C++ 9. Comments 10. My First Program in C++ 11. Line Break 12. C++ Escape Sequence 13. Constants or Literals 14. Variable in C++ 15. Data Types in C++ 16. Range of data types in C++ 17. Declare Variables 18. Reserved Key Words 19. cout<< 20. Chained & Embedded state 21. Prog.to print sum of 2 nos 22. cin>> 23. Prg.to print sum & average 24. Area & Perimeter of Rectangle 25. Area Circumference of Circle 26. Prg.for Simple Calculator 27. Operatos in C++ 28. Ex. Of Operators 29. Swap two numbers 30. Hierarchy of Operators 31. if( ) statement 32. Prg.to check +ve,-ve or zero 33. if..else statement 34. Prg.to check Odd or Even 35. Prg.to print larger of 2 nos 36. Prg.to print largest of 3 nos 37. Prg.to check divisibility 38. Prg.to check print range 39. for. . . loop statement 40. prg.to print series of nos 41. Prg.to check divisibility 42. prg.to print sum of series 43. Prg.to print Pyramid 44. prg.for Factorial 45. prg.to fill screen 46. prg.for largest/smallest no 47. prg.to print reverse no 48. prg.to add each digit 49. prg.for sum of factorial 50. prg.for fibonacci series 51. prg.to check Prime nos 52. prg. Prime no from 1 to 100 53. prg.Specified Prime nos 54. while( ) statement 55. do. . While statement 56. goto statement 57. break & continue statement 58. switch case statement 59. Array in C++ 60. print reverse order using array 61. Ascending/Descending order 62. prg.to search no in Array 63. Double Dimension Array 64. String in C++ 65. String with spaces in C++ 66. prg.to print string in reverse 67. prg.to count A,E,I,O,U vowel 68. Function( ) in C++ 69. Function program examples 70. General Purpose Programs 71. Loan & EMI calculation prg. 72. Table print prg. 73. Leap year program 74. lower to UPPER case prg. 75. Age Distribution prg. 76. Bank note calculation prg. 77. Simple Interest prg. 78. Compound Interest prg. 79. Simple Depreciation prg. 80. Reducing bal.Depreciation prg. 81. Marksheet prg. 82. Income Tax prg. 83. Time calculator prg. 84. Distance converter prg. 85. Volume Air Calculation prg. 86. Time to fill Water Tank prg. 87. Salary Calculation prg. 88. Total Sale Calculation prg. 89. Male/Female percentage prg. 90. Library Rent prg. 91. Office Expence prg. 92. Total Salary Calculation prg. 93. Profit or Loss prg. 94. Total Profit/Loss prg. 95. Convert Amt to Word. 96. ASCII Table 97. C++ Operators 98. C & C++ Reserved Keyword 99. C & C++ Pre-Define Function 100. C++ Interview Part1 101. C++ Interview Part2 102. C++ Interview Part3 103. C++ Interview Part4 104. C++ Interview Part5 105. C++ Interview Part6 106. C++ Interview Part7 107. C++ Interview Part8 108. C++ Interview Part9 109. C++ Interview Part10 110. C++ Interview Part11 111. C++ Interview Part11
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Basic Requirement of C++ Program tutorials

# include <iostream.h>

  • The first line of all C++ program is #include <iostream.h>

  • It look’s like a program statement but it is not. It is not a part of the function body and doesn’t end with a semicolon.

  • Instead, it starts with a sign # , It is called a preprocessor directives.

  • A preprocessor directive is an instruction to the compiler, to include another file into our source file.

  • In effect, the #include directive is replaced, by the contents of the file specified.

  • The preprocessor directive #include tells the compiler, to add the iostream.h( Input\outputstream header file) to current program before compiling.

  • C++ is small but powerfull language and it can do nothing without use of external libraries.

  • The iostream.h header library contains code, that allows you to read and write data from and to the monitor.


# include <header file>

  • Apart from iostream.h file, some function needs other header files. So if you use those functions, you need to include appropriate header files.

  • Functions like pow(), log(), acos(), atan() require <math.h> header file.

  • Functions like strcmp(), strcpy(), strlen() require <string.h> header file.



  • Functions are one of the fundamental building blocks of C++.

  • The entire C++ code runs inside functions.

  • The parentheses following the word main() are distinguishing features of function.

  • The word void preceeding the function name indicates that this particular function does not have a return value.

  • Braces { }: The body of function is surrounded by braces sometimes you may even call them curly brackets.

  • They surround or delimit a block of program statement.

  • Every function must use this pair of braces, this braces{ } indicates begin and end of the function.



  • main() is the most imporatant function of any C++ prorgram.

  • The first statement executed will be at the beginning of function called main().

  • If there is no function called main() in the program, while linking program, C++ will gives an error.

  • If you rename main() function with some thing else like newmain() function, and if you compile this program it will compile successfully, but when you run the program it will give runtime linker error as undefined symbol _main in library file.

  • If main() function does not return any value, then we need to type it as void main().

  • If we write only main() then the default return type of the function main() is int. In this case you need to write return 0; at the end of your C++ program.



  • At the end of each C++ program statement there must be a ; (semicolon).

  • However semicolon should not be written after function name,iteration logic,control logic.

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