Virtual University Solved Assignments Online Quiz Past Papers GDB VUsolutions VU solutions

SOLUTION:

#include
#include
#include
using namespace std;
int main()
{char filename[30];
int num,i;
string name,classs,line;
ifstream input;
ofstream output;
cout<<"what is the name of the file you are using? ";
cin>>filename;
output.open(filename); //open file
if(output.fail())
{ cout<<"file did not open please check it ";
system("pause");
return 1;
}
output<<"Roll NO Student Name Class ";
cout<<"Enter Roll No ( <0 to exit): ";
cin>>num;
while(num>0)
{cin.ignore(255,' ');
cout<<"Enter name: ";
getline(cin,name);
cout<<"Enter class: ";
getline(cin,classs);
output<<" "<<<" "<<<" "<<
cout<<"Enter Roll No ( <0 to exit): ";
cin>>num;
}
output.close();
input.open(filename); //open file
if(input.fail())
{ cout<<"file did not open please check it ";
system("pause");
return 1;
}
cout<
while(input)
{getline(input,line);
cout<<
}
output.close();
system("pause");
return 0;
}

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2nd SOLUTION
______________________________

#include
#include
#include


int main(void)
{

char rollNo[10],studentName[20],studentClass[20];
ifstream iFile;
ofstream oFile;
oFile.open("Student_info.txt",ios::out);
iFile.open("Student_info.txt");
if (!iFile)
{
cout << "iFile could not be opend";
}

if (!oFile)
{
cout << "oFile could not be opened";
}

oFile << "RollNo" << "\t" << "StudentName" << "\t" << "Class" <oFile << "101" << "\t" << "AliRaza" << "\t" << "BS(CS)" <oFile << "102" << "\t" << "Usman" << "\t" << "MS(CS)" <oFile << "103" << "\t" << "Faizan" << "\t" << "BS(CS)" <oFile << "104" << "\t" << "Rehan" << "\t" << "MIT" <oFile << "105" << "\t" << "Ahmed" << "\t" << "MCS";
oFile.close();

while (!iFile.eof())
{
iFile >> rollNo >> studentName >> studentClass;
cout << rollNo << "\t"<< studentName << "\t"<<"\t"<
}
iFile.close();
system("PAUSE");
return 0;
}


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[[NOTE:- We always try our best to upload 100% correct solution BUT it is requested that you kindly review it before submission, please.]]

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Problem Statement:
Writing and Reading student data in a file.

Detailed Description:
Write a program in which you have to:
1. Create a text file “Student_info”.

2. Using Code Write the following data in it:

Roll NO Student Name Class
101 Ali Raza BS(CS)
102 Usman MS(CS)
103 Faizan BS(CS)
104 Rehan MIT
105 Ahmed MCS


3. Open file and read data from it and display on the screen.

Sample Output
Student Information

Roll NO Student Name Class
101 Ali Raza BS(CS)
102 Usman MS(CS)
103 Faizan BS(CS)
104 Rehan MIT
105 Ahmed MCS

Deadline
Your assignment must be uploaded/submitted on or before 18-06-2009.