C++ program to read the file and output the list in the tabular format

A file contains a list of names and telephone numbers in the following form:

Name             Tel. No.

Write a C++ program to read the file and output the list in the tabular format. The name should be left-justified and numbers right-justified. Use a class object to store each set of data.

#include<iostream.h>

#include<conio.h>

#include<iomanip.h>

#include<fstream.h> class phone

{

public:

char name[20]; long int phone_no; void getdata()

{

cout<<"Enter the name and phone_no"<<"\n"; cin>>name>>phone_no;

}

void putdata()

{

cout<<endl<<setw(20)<<setiosflags(ios::left)<<name<<setw(10) <<setiosflags(ios::right)<<phone_no<<endl;

}

};

void main()

{

fstream f; phone ph; int n;

f.open("phonefile",ios::out|ios::in|ios::app);

clrscr();

cout<<"\nEnter the total no_of records:"; cin>>n;

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

{

ph.getdata();

f.write((char *)&ph,sizeof(ph));

}

f.seekg(0);

cout<<"\n\nThe content of the file is:\n\n"; cout<<setw(20)<<setiosflags(ios::left)<<"NAME"

<<setw(10)<<setiosflags(ios::right)<<"TELEPHONE_NO"; while(f.read((char *)&ph,sizeof(ph)))

ph.putdata();

f.close();

getch();

}

**********************************OUTPUT********************************

Enter the total no_of records:3 Enter the name and phone_no RAGHU

2456570

Enter the name and phone_no RAJEEV

2457859

Enter the name and phone_no RANJU

2451230

The content of the file is:

NAME                TELEPHONE_NO

RAGHU                  2456570

RAJEEV                2457859

RANJU                   2451230