cpp_tutorial

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C++ When the above code is compiled and executed, it produces the following result: a is less than 20; value of a is : 10 if…else Statement An if statement can be followed by an optional else statement, which executes when the boolean expression is false. Syntax The syntax of an if...else statement in C++ is: if(boolean_expression) { } else { } // statement(s) will execute if the boolean expression is true // statement(s) will execute if the boolean expression is false If the boolean expression evaluates to true, then the if block of code will be executed, otherwise else block of code will be executed. Flow Diagram 72
C++ Example #include using namespace std; int main () { // local variable declaration: int a = 100; // check the boolean condition if( a < 20 ) { // if condition is true then print the following cout
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About the Tutorial C++ is a middle-
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Enumerated Types ..................
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Function Declarations .............
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Structures as Function Arguments ..
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Data Encapsulation Example ........
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My First CGI program ..............
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C++ The ANSI standard has been stab
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C++ C++ Compiler: This is an actual
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3. BASIC SYNTAX C++ When we conside
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C++ add(x, y); A block is a set of
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C++ ??= # ??/ \ ??' ^ ??( [ ??) ] ?
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C++ cout
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C++ The following table shows the v
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C++ typedef int feet; Now, the foll
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C++ type variable_list; Here, type
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C++ Same concept applies on functio
Page 34 and 35: C++ Global Variables Global variabl
Page 36 and 37: 8. CONSTANTS/LITERALS C++ Constants
Page 38 and 39: C++ \a Alert or bell \b Backspace \
Page 40 and 41: C++ } cout
Page 42 and 43: C++ j = 50000; i = j; cout
Page 44 and 45: C++ The static storage class instru
Page 46 and 47: C++ extern int count; void write_ex
Page 48 and 49: C++ ++ Increment operator, increase
Page 50 and 51: C++ operand is greater than or equa
Page 52 and 53: C++ Line 5 - b is either greater th
Page 54 and 55: C++ Bitwise operator works on bits
Page 56 and 57: C++ c = ~a; // -61 = 1100 0011 cout
Page 58 and 59: C++ Copy and paste the following C+
Page 60 and 61: C++ Condition ? X : Y Conditional o
Page 62 and 63: C++ int b = 10; int c = 15; int d =
Page 64 and 65: C++ do...while loop Like a ‘while
Page 66 and 67: C++ } return 0; When the above code
Page 68 and 69: C++ { } cout
Page 70 and 71: C++ } When the above code is compil
Page 72 and 73: C++ 2 is prime 3 is prime 5 is prim
Page 74 and 75: C++ Example #include using namespa
Page 80 and 81: C++ the ‘for’ loop are required
Page 82 and 83: C++ for equality against a list of
Page 86 and 87: C++ An if can have zero to many e
Page 88 and 89: C++ switch(expression){ case consta
Page 90 and 91: C++ case 'D' : cout
Page 92 and 93: C++ C++ specifies that at least 256
Page 94 and 95: 14. FUNCTIONS C++ A function is a g
Page 96 and 97: C++ Calling a Function While creati
Page 98 and 99: C++ in the call. This means that ch
Page 100 and 101: C++ temp = *x; /* save the value at
Page 102 and 103: C++ int main () { // local variable
Page 104 and 105: C++ Total value is :300 Total value
Page 106 and 107: C++ cout
Page 108 and 109: C++ double d = 200.374; // mathemat
Page 110 and 111: 16. ARRAYS C++ C++ provides a data
Page 112 and 113: C++ for ( int j = 0; j < 10; j++ )
Page 114 and 115: C++ Multidimensioned arrays may be
Page 116 and 117: C++ Once you store the address of f
Page 118 and 119: C++ { . . . } Way-3 Formal paramete
Page 120 and 121: C++ . . } Second point to remember
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Page 124 and 125: C++ int main () { char greeting[6]
Page 126 and 127: C++ strcat( str1, str2): HelloWorld
Page 128 and 129: 18. POINTERS C++ C++ pointers are e
Page 130 and 131: C++ // print the address stored in
Page 132 and 133: C++ convention, if a pointer contai
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C++ int main () { int var[MAX] = {1
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C++ Address of var[1] = 0xbfce42d4
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C++ Above statement is valid and wi
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C++ char *names[MAX] = { "Zara Ali"
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C++ Passing Pointers to Functions C
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C++ } return avg; When the above co
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C++ 613357504 1377296355 1530315259
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C++ // declare simple variables int
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C++ int temp; temp = x; /* save the
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C++ vals[4] = 50 When returning a r
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C++ hours:minutes:seconds year\n\0.
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C++ using namespace std; int main(
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C++ using namespace std; int main(
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C++ Error message : Unable to read.
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C++ int }book; book_id; Accessing S
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C++ using namespace std; void print
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C++ #include #include using names
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C++ Now, you can use Books directly
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C++ Both of the objects Box1 and Bo
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C++ created previously. C++ friend
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C++ { public: double length; double
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C++ internal representation of a cl
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C++ A private member variable or fu
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C++ You will learn derived classes
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C++ Line::Line(void) { cout
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C++ Line line(10.0); // get initial
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C++ } cout
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C++ } cout
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C++ } *ptr = len; Line::Line(const
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C++ friend class ClassTwo; Consider
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C++ int main( ) { } cout
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C++ Constructor called. Box2 is equ
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C++ Let us try the following exampl
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C++ }; Box(double l=2.0, double b=2
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24. INHERITANCE C++ One of the most
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C++ Total area: 35 Access Control a
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C++ }; public: int getCost(int area
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C++ 25. OVERLOADING (OPERATOR & FUN
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C++ Box operator+(const Box&, const
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C++ cout
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C++ #include using namespace std;
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C++ Time(int h, int m){ hours = h;
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C++ class Box { double length; doub
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C++ } return 0; When the above code
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C++ } { cout and the stream insert
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C++ Second Distance :F : 5 I : 11 T
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C++ } T2.displayTime(); T2++; T2.di
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C++ The function call operator () c
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C++ int arr[SIZE]; public: safearay
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C++ static int i, j; public: void f
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C++ } When the above code is compil
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C++ return (width * height); } }; c
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C++ As you can see, each of the chi
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C++ Here, you don't need to underst
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C++ Designing Strategy Abstraction
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C++ defined after the public specif
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29. INTERFACES C++ An interface des
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C++ }; int getArea() { return (widt
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30. FILES AND STREAMS C++ So far, w
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C++ You read information from a fil
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C++ File Position Pointers Both ist
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C++ Throwing Exceptions Exceptions
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C++ Because we are raising an excep
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C++ struct MyException : public exc
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C++ double* pvalue = NULL; if( !(pv
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C++ class Box { public: Box() { cou
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C++ // second name space namespace
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C++ } return 0; If we compile and r
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34. TEMPLATES C++ Templates are the
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C++ #include #include #include #
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C++ } } If we compile and run above
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C++ test.p. Now, if you check test.
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C++ #if 0 /* This is commented part
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C++ Above line will be transformed
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36. SIGNAL HANDLING C++ Signals are
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C++ Going to sleep.... Going to sle
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37. MULTITHREADING C++ Multithreadi
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C++ } pthread_exit(NULL); int main
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C++ int i; } for( i=0; i < NUM_THRE
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C++ // Initialize and set thread jo
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38. WEB PROGRAMMING C++ What is CGI
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C++ Options All Here, I assume th
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C++ Variable Name Description CONTE
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C++ if ( value != 0 ){ cout
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C++ You can pass information by sim
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C++ First Name: Last Name: Her
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C++ cout
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C++ if( !fi->isEmpty() && fi != (*f
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C++ Passing Dropdown Box Data to CG
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C++ Domain: This is the domain
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C++ Cgicc cgi; const_cookie_iterato
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C++ #include #include #include #
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39. STL TUTORIAL C++ Hope you have
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C++ value of vec [1] = 1 value of v
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C++ The Localization library Exc
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