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Here we have given you all the code of C++ Programming Lnaguage, which are best for BCA and IT Students. To view and copy the code just double tap on the programs topic given below.

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#include <isotream.h> //header file
#include <conio.h> //header file
void main()
{
clrscr();
// Clearing Screen for removing Garbage Value

cout<<"Hello World"<<endl;
// cout is used to print on screen

getch();
// For holding console window
}

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#include <isotream.h>
#include <conio.h>
void main()
{
int a, b, c, d, e, avg;
clrscr();

cout<<"Enter the 4 numbers."<<endl;
cin>>a>>b>>c>>d>>e;

avg=(a+b+c+d)/5;

cout<<"The average of five numbers is "<<avg<<endl;
getch(); }

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#include <isotream.h>
#include <conio.h>
class student
{
public :
int a, b, c ;

student ()
{
cout<<"Enter two numbers: "<<endl ;
cin>>a>>b ;

c = a + b ;
cout<<" The sum of two numbers is: "<<c ;
}
};
void main()
{
clrscr();
student();
getch();
}

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#include <isotream.h>
#include <conio.h>
void fact()
{
int a, b, f=1;
clrscr();

cout<<"Enter a number: "<<endl;
cin>>a;

for (b=a ; b>0 ; b--)
f = f * b;

cout<<" Factorial of "<<a<<" is: "<<f;
}
void main()
{
clrscr();
fact();
getch();
}

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#include <isotream.h>
#include <conio.h>
class student // Here 'student' is the name of class
{
public: // Access Specifier
char a[10] ;
int b ;

void mydata (void); // Function declaration inside class
} ;

void student :: mydata (void) // Function Calling where ' :: ' is scope resolution operator
{
cout<<"Enter your name: "<<endl ;
cin>>a;

cout<<"Enter your age: "<<endl ;
cin>>b;

cout<<"So your name is "<<a<<" and age is "<<b ;
}
void main()
{
clrscr();
student x ; // Creating object(x) for class(student)
x.mydata(); // Function Invoking using dot operator
getch();
}

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#include <isotream.h>
#include <conio.h>

class A
{
public:
char name[10];
int a;
void student (void)
{
cout<<"Enter your name: "<<endl;
cin>>name;
}
};

class B : public A
{
public:
void age (void)
{
cout<<"Enter your age: "<<endl;
cin>>a;
}
};

void main()
{
clrscr();
B m;
// Creating object for class B
// As class B also contains public elements of class A

m.student();
m.age();
getch();
}

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#include <isotream.h>
#include <conio.h>
class student // Here 'student' is the name of class
{
public: // Access Specifier
char a[20];
int b;
void getdata (void); // Function Declaration inside class
void displaydata (void); // Function Declaration inside class
};

void student :: getdata (void) // Function Calling where ' :: ' is scope resolution operator
{
cout<<"Enter your name: "<endl;
cin>>a;
cout<<"Enter your age: "<<endl;
cin>>b;
}
void student :: displaydata (void) //Function Calling
{
cout<<"So, your name is "<<a<<endl;
cout<<"So, your age is "<<b<<endl;
}
void main()
{
clrscr();
student x; // Creating object(x) for class(student)
x.getdata(); // Function Invoking using dot operator
x.displaydata();
getch();
}

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#include <isotream.h>
#include <conio.h>
class student
{
public :
char a[10] ;
int b;

student () // Constructor has same name as of class name
{
cout<<"Enter your name: "<<endl ;
cin>>a;

cout<<"Enter your age: "<<endl ;
cin>>b;
}

void mydata (void) // Member Fuction Calling inside class
{
cout<<"So your name is "<<a<<" and age is "<<b ;
}
};
void main()
{
clrscr();
student x ; // Object (x) is created for Function (mydata)
x.mydata(); // Constructor is invoked automatically
getch();
}

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#include <isotream.h>
#include <conio.h>
class student
{
public :
int a, b, c ;

student ()
{
cout<<"Enter two numbers: "<<endl ;
cin>>a>>b ;

c = a + b ;
cout<<"The sum of two numbers is: "<<c ;
}
};
void main()
{
clrscr();
student();
getch();
}

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#include <isotream.h>
#include <conio.h>

inline float average (float a, float b)
{
return ((a+b)/2);
}

inline int addition (int c, int d)
{
return (c+d);
}

void main()
{
clrscr();
int x, y;

cout<<"Enter two values: "<<endl;
cin>>x>>y;

cout<<"The average of the numbers is: "<<average (x, y)<<endl;

cout<<"The addition of two numbers is: "<<addition (x, y)<<endl;

getch();
}

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#include <isotream.h>
#include <conio.h>
void num (int a, int b)
{
cout<<"The addition is: "<<a+b<<endl;
}

void num (float c, float d) //Same function name, different data types
{
cout<<"The division is: "<<c/d<<endl;
}

void main()
{
int x, y;
float w, z;
clrscr();

cout<<"Enter the numbers for addition: "<<endl;
cin>>x>>y;

cout<<"Enter the numbers for division: "<<endl;
cin>>w>>z;

num(x,y);
num(w,z);
getch();
}

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#include <isotream.h>
#include <conio.h>

class A
{
public:
char name[10];
void student (void)
{
cout<<"Enter your name: "<<endl;
cin>>name;
}
};

class B
{
public:
int a;
void age (void)
{
cout<<"Enter your age: "<<endl;
cin>>a;
}
};

class C : public B, public A
{
public:
void data (void)
{
cout<<"So, your name is "<<name<<" and your age is "<<a<<endl;
}
};

void main()
{
clrscr();
C x;
x.student();
x.age();
x.data();
getch();
}

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#include <isotream.h>
#include <conio.h>
class A
{
public:
int a;
char name[10];
void student (void)
{
cout<<"Enter your name: "<<endl;
cin>>name;
}
};

class B : public A
{
public:
void marks (void)
{
cout<<"Enter your age: "<<endl;
cin>>a;
}
};

class C : public B
{
public:
void data (void)
{
cout<<"So, your name is: "<<name;
cout<<" and age is: "<<a;
}
};

void main()
{
clrscr();
C m;
// Creating object for class C as it contains all public elements of class A & B
m.student();
m.marks();
m.data();
getch();
}

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Use CodeBlocks for this program

#include <isotream.h>
#include <conio.h>
using namespace std;

namespace first
{
void function (void)
{
cout<<"This is first function."<<endl;
}
}

namespace second // Different Namespace name
{
void function (void) // Same function name
{
cout<<"This is second function."<<endl;
}
}

int main()
{
first :: function();
second :: function();
return 0;
}

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#include <isotream.h>
#include <conio.h>

template <class BCA>
BCA sum (BCA n1, BCA n2)
{
return (n1+n2);
}

class BCA
{
public:
int a, b;
void mydata (void);
};
void BCA :: mydata (void)
{
cout<<"Enter two numbers: "<< endl;
cin>>a>>b;

cout<<"The addition is: "<<sum(a, b);
}

void main()
{
clrscr();
BCA x;
x.mydata ();
getch();
}

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#include <isotream.h>
#include <conio.h>
class BCA
{
public:
int rollno;
float age;
char grade;

BCA (int rn, float ag, char g)
{
rollno = rn;
age = ag;
grade = g;
}

void operator ++ (int)
{
rollno = rollno + 1;
age = age + 1;
grade = grade + 1;
}
};

void main()
{
clrscr();
BCA obj(20, 5.0, 'A');
cout<<"Before overloading, valuess's variables are: \n";
cout<<obj.rollno<<endl<<obj.age<<endl<<obj.grade;
obj++;

cout<<"\n After overloading, values's of variables are: \n";
cout<<obj.rollno<<endl<<obj.age<<endl<<obj.grade;
getch();
}

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#include <isotream.h>
#include <conio.h>
class fibonacci
{
public:
int a, b, x, y, z;

fibonacci ()
{
x= 0;
y= 1;
cout<<"Enter a positive integer: "<<endl;
cin>>a;

cout<<"The Fibonacci Series is: "<<endl;
for ( b=1; b<=a; ++b)
{
cout<<x<<"\t";
z = x + y;
x = y;
y = z;
}
}
};

void main()
{
clrscr();
fibonacci x;
getch();
}

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#include <isotream.h>
#include <conio.h>
template <class BCA>

BCA large (BCA n1, BCA n2)
{
return (n1>n2)?n1:n2;
}

class BCA
{
public:
int a, b;
void mydata (void);
};

void BCA :: mydata (void)
{
cout<<"Enter two numbers: "<<endl;
cin>>a>>b;

cout<<"The larger numbers is: "<<large(a, b);
}

void main()
{
clrscr();
BCA x;
x.mydata ();
getch();
}