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प्रश्न
Write a definition for a function TotalTeachers( ) in C++ to read each object of a binary file SCHOOLS.DAT, find the total number teachers, whose data is stored in the file and display the same. Assume that the file SCHOOLS.DAT is created with the help objects of class SCHOOLS, which is defined below :
class SCHOOLS
{
int SCode; //School Code
char SName[20]; //School Name
int NOT; // Name of Teachers in the school
public:
void Display()
{
cout<<SCode<<"#"<<SName<<"#" << NOT << endl;
int RNOT() {return NOT;}
};उत्तर
void putnot()
{
cout <<NOT<< " ";
}
void TotalTeachers()
{
fstream f;
SCHOOLS Stu;
f.open("SCHOOLS.DAT", ios::in|ios::binary);
cout << “\nTotal no. of Teachers : \n”;
while((f.read((char*)&Stu, sizeof(Stu))) != NULL)
Stu.putnot();
f.close();
}APPEARS IN
संबंधित प्रश्न
A text file named MATTER.TXT contains some text which needs to be displayed such that every next character is separated by a symbol '#'.
Write a function definition for HashDisplay() in C++ that would display the entire content of the file MATTER.TXT in the desired format:
Example:
if the file Matter.TXT has the following content stored in it:
THE WORLD IS ROUND
The function HashDisplay() should display the following content:
T#H#E #W#O#R#L#D# #I#S# #R#O#U#N#D#
Find the output of the following C++ code considering that the binary file SCHOOL.DAT exists on the hard disk with the following records of 10 schools of the class SCHOOLS as declared in the previous question(4 b)
| SCode | SName | NOT |
| 1001 | Brains School | 100 |
| 1003 | Child Life School | 115 |
| 1002 | Care Share School | 300 |
| 1006 | Educa t for Life School | 50 |
| 1005 | Guru Shiahya Sadan | 195 |
| 1004 | Holy Education School | 140 |
| 1010 | Play School | 95 |
| 1008 | Innovate Excel School | 300 |
| 1011 | Premier Education School | 200 |
| 1012 | Uplifted Minds School | 100 |
void main()
{
fstream SFIN;
SFIN.open("SCHOOLS.DAT", ios::binary|ios::in) ;
SCHOOLS S;
SFIN.seekg(S*sizeof(S));
SFIN.read((char*)&S, sizeof(S));
S.Display();
cout<<"Record : "<<SFIN.tellg()/sizeof(S) + l <<endl;
SFIN.close();
}