AIM:Write a C++ program to implement following types of Inheritances:1) Hybrid Inheritances.2) Multilevel Inheritance.

 CODING:

//Hybrid Inheritance.

#include<iostream.h>

#include<conio.h>

class A

{

public:

int a;

};

class B: public A

{

public:

int b;

};

class D

{

public:

int d;

};

class C: public B,public D

{

public:

void add()

{

a=2,b=3,d=5;

int c=a+b+d;

cout<<"Addition is ="<<c;

}

};

main()

{

clrscr();

C c;

void add();

getch();

return(0);

}

AIM:Write a C++ program that creates an output file, writes information to it, closes the file and open it again as an input file and read the information from the file

CODING:

#include<fstream.h>

#include<conio.h>

class student

{

   char name[20];

   int roll;

   public:

     void getdata()

     {  cout<<"Enter Name:"<<endl;

            cin>>name;

            cout<<"Enter roll No:"<<endl;

            cin>>roll;

     }

       void showdata()

       { cout<<"Name is:"<<name<<endl;

             cout<<"Roll No is"<<roll<<endl;

            }

};

main()

{  clrscr();

   student s[2];

   ofstream of;

   of.open("student.txt");

   for(int i=0;i<2;i++)

   {

     s[i].getdata();

     of.write((char *)&s[i],sizeof(s[i]));

     of.close();

   }

   ifstream fin;

   fin.open("student.txt");

   for(i=0;i<2;i++)

   {

     fin.read((char *)&s[i],sizeof(s[i]));

     s[i].showdata();

     fin.close();

   }

   getch();

   return 0;

}

AIM: Define an array which stores arr[]={11,22,33,44,55,66,77,88,99}. Write a program to illustrate the use of command line arguments that supplies the file name called ODD & EVEN to the program. Using command line arguments the odd numbers’ are stored into the ODD file & even numbers’ are stored into the EVEN file. Finally display the contents from both the files.

  

CODING:

#include<fstream.h>

#include<conio.h>

#include<iomanip.h>

#include<process.h>

 main(int argc,char *argv[])

{

int arr[9]={11,22,33,44,55,66,77,88,99};

if(argc!=3)

{

cout<<"parameter is not match:";

exit(1);

}

ofstream f1,f2;

f1.open(argv[1]);

if(f1.fail())

{

cout<<"error in opening file";

exit(1);

}

for(int i=0;i<=9;i++)

{

if(arr[i]%2==0)

{

f1<<arr[i];

}

f1.close();

f2.close();

ifstream fin;

char ch;

for(i=0;i<=argc;i++)

{

fin.open(argv[i]);

cout<<"content of file are";

do

{

fin.get(ch);

}

while(fin.eof());

cout<<"\n";

}

fin.close();

}

if(!argc==3)

{

cout<<"array elements are"<<endl;

cin>>argc;

}

getch();

return(0);

}

AIM: Write a C++ program that counts number of words in a file.

CODING:

#include<fstream.h>

#include<conio.h>

main()

{

clrscr();

int count=1;

ifstream f1;

f1.open("student.txt");

f1.seekg(0);

char ch;

while(! f1.eof())

{

 f1.get(ch);

 }

 if(ch==' '|| ch=='\t'|| ch=='\n')

 {

  count++;

 }

 cout<<"Number of words="<<count;

 f1.close();

 getch();

 return 0;

}

C++ Programs for Stack Implementation, Array of Objects, Friend Function

Today I am providing Various Important C++ Programs with coding.

AIM:

Write a C++ program to implement a stack with its constructor and two member functions PUSH and POP.

CODING:

#include<iostream.h>

#include<conio.h>

#include<stdio.h>

#define size 4

class stact

{

int st;

int tos;

public:

stact();

~stact();

void push(int x);

pop ();

};

void stact::st()

{

tos=0;

cout<<"stact incremented"<<endl;

}

void stact::~stact()

}

  cout<<"stact is empty"<<endl;

  return ;

}

void stact::push(int x)

{

if(tos==size)

{

cout<<"stack is full"<<endl;

return;

}

stack[tos]=x;

tos++ ;

};

void st::pop()

{

if(t==0)

{

cout<<"stack is empty"<<endl;

}---;

return stack[t];

}

void main()

{

st s1,s2,s3,s4;

s1.push(1);

s2.push(2);

s3.push(3);

s4.push(4);

cout<<" "<<s4.pop();

cout<<" "<<s3.pop();

cout<<" "<<s2.pop();

cout<<" "<<s1.pop();

getch();

}

----------------------------------------------------------------------------------------------------------

AIM:

Write a C++ program for an array of objects.

CODING:

#include<iostream.h>

#include<conio.h>

class Student

{

  public:

            char name[20];

            int enrol;

            char section[20];

            void getdata()

            {

              cout<<"Enter the Name,Enrol & Section"<<endl;

              cin>>name>>enrol>>section;

            }

            void showdata()

            {

              cout<<"Name of Student is : "<<name<<endl;

              cout<<"Enrolment no. is : "<<enrol<<endl;

              cout<<"Section is : "<<section<<endl;

            }

};

main()

{

   Student s[3];

   for(int i=0;i<3;i++)

   {

     s[i].getdata();

   }

   for(i=0;i<3;i++)

   {

     s[i].showdata();

   }

   getch();

   return 0;

}

----------------------------------------------------------------------------------------------------------

AIM:

Write a C++ program for Friend function.

CODING:

#include<iostream.h>

#include<conio.h>

class demo

{

  private:

  int a,b;

  public:

  void setvalue()

  {

    a=10;

    b=15;

  }

   friend int add(demo d);

};

 int add(demo d)

 {

   return int(d.a+d.b);

 }

 main()

 {

  clrscr();

   demo d1;

   d1.setvalue();

   cout<<"addition is="<<add(d1);

   getch();

   return 0;

 }