CS201 Solution

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;

}



______________________________

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.]]



_________________________________________







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.