i have written this program, it's nearly finished, but i didn't found out right away that my code has bug..
once i enter number of students i wish to add, the value goes to the for loop, i think i coded that just fine, but the problem is, for example, i entered 2 as the number of student, then it goes to the for loop, then the for loop runs just once instead of twice since i entered 2 as the limit.. its like
for(i=0;i<number;i++)
the number value is 2.. then the loop is supposed to run twice, but it only runs once.. help!
#include<iostream.h>
#include<stdlib.h>
#include<conio.h>
#include<dos.h>
#include<iomanip.h>
#include<string.h>
#define VAL 100
struct students
{
char name[30];
int quiz[2],ass,act,exam;
float aveq[2],aveex,cs,pg,totaveq;
}grade[VAL];
void prompt();
void menu();
void option();
void addrecord();
void viewrecord();
int count=0,counts=1;
float totex=0,totq[2]={0,0};
char chr;
int main()
{
// prompt();
menu();
getch();
return 0;
}
void prompt()
{
int s;
a: clrscr();
char user[]="michael",pass[]="jokershrek";
while(counts<=3)
{
cout<<"username: "; cin>>user;
cout<<"password: "; cin>>pass;
if((strcmp(user,"michael")==0)&&(strcmp(pass,"jokershrek")==0))
{
cout<<"Redirecting. Please wait";
for(s=0;s<4;s++)
{
cout<<'.';
delay(300);
}
menu();
}
else
{
cout<<"\nACCESS DENIED!";
delay(300);
counts++;
goto a;
}
}
delay(300);
cout<<"\n\nYou have entered 3 consective incorrect U&P\nTerminating program";
for(s=1;s<4;s++)
{
cout<<'.';
delay(500);
}
exit(0);
}
void menu()
{
clrscr();
cout<<"\t\tSTUDENT RECORD SYSTEM\n\n";
cout<<"[A] Add record(s)\n"
<<"[V] View record(s)\n"
<<"[X] Exit program \t";
cin>>chr;
if(chr=='A'||chr=='a')
addrecord();
else if(chr=='V'||chr=='v')
viewrecord();
else if(chr=='X'||chr=='x')
exit(0);
else
menu();
}
void option()
{
cout<<"\n[1] Add another entry"
<<"\n[2] Return to menu\t";
cin>>chr;
if(chr=='1')
addrecord();
else if(chr=='2')
menu();
else
option();
}
void addrecord()
{
clrscr();
int number,i;
[B]cout<<"How many entries do you want to add? ";
cin>>number; //defines the numbers of student's grade input[/B]
if(totex==0) //shows only if the value of totalexam is 0
{
cout<<"Exam perfect score: ";
cin>>totex;
}
else if(totex>0) //shows only if there are value stored in totex>0
cout<<"Exam perfect score: "<<totex;
if(totq[0]==0&&totq[1]==0) // shows only if the value
{ // of 2 quizzes PS is 0
for(int x=0;x<=1;x++)
{
cout<<"Quiz #"<<x+1<<" perfect score: ";
cin>>totq[x];
}
}
else if(totq[0]>0&&totq[1]>0) //shows the value of PS of two
{ //quizzes if totq is greater than 0
for(int x=0;x<=1;x++)
{
cout<<"\nQuiz #"<<x+1<<" perfect score: "<<totq[x];
}
}
[B]for(i=0;i<number;i++)[/B] //this is the line
{
cout<<"\n\n||STUDENT #"<<count+1<<"||\n\n";
cout<<"NAME: ";
cin>>grade[count].name;
cout<<" Prelim Exam: ";
cin>>grade[count].exam;
for(int j=0;j<=1;j++)
{
cout<<" Quiz #"<<j+1<<": ";
cin>>grade[count].quiz[j];
}
cout<<" Activity ave: ";
cin>>grade[count].act;
cout<<" Assignment ave: ";
cin>>grade[count].ass;
//computation part start
/* this part of the code computes the inputs
and stores the computed values in the stucture
named students */
grade[count].aveex=grade[count].exam/totex*50+50;
for(i=0;i<=number;i++)
{
grade[count].aveq[i]=grade[count].quiz[i]/totq[i]*50+50;
grade[count].totaveq+=grade[count].aveq[i];
}
grade[count].cs=((grade[count].totaveq/2)+grade[count].ass+grade[count].act)/3;
grade[count].pg=(grade[count].cs*.6)+(grade[count].aveex*.4);
//computation part end
count++; //for the next input of student's grade
}
clrscr();
menu();
}
void viewrecord()
{
clrscr();
int l,k;
if(count>0)
{
cout<<"\t\tSTUDENT RECORDS\n\n"
<<" NAME P.EXAM Q1 Q2 ACT ASS PRELIM GRADE\n";
for(l=0;l<count;l++)
{
cout<<l+1<<" "
<<grade[l].name;
gotoxy(18,4+l);
cout<<setprecision(2)<<grade[l].aveex;
for(int j=0,k=0;j<=1,k<=8;j++,k+=8)
{
gotoxy(k+30,4+l);
cout<<setprecision(2)<<grade[l].aveq[j];
}
gotoxy(46,4+l);
cout<<setprecision(2)<<grade[l].act;
gotoxy(55,4+l);
cout<<setprecision(2)<<grade[l].ass;
// <<setprecision(2)<<grade[i].cs<<"\n"
gotoxy(64,4+l);
cout<<setprecision(2)<<grade[l].pg<<"\n";
}
}
else
cout<<"NO ENTRY FOUND!\n";
option();
}
