C++ Project Code for Students & Teachers Information System ~ ENGINEERING PROJECTS

C++ Project Code for Students & Teachers Information System

CODE:

#include<iostream.h>
#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<dos.h>

class kuet
{ protected:
char name[30],adress[30],dept[20];
float emp_id;
public:
void input()
{
cout<<"\n\n\tEnter name:";gets(name);
cout<<"\n\n\tGIVE EMP_ID= ";cin>>emp_id;
cout<<"\n\n\tEnter adress:";gets(adress);
cout<<"\n\n\tEnter department name: ";gets(dept);
}
void display()
{
cout<<"\n\tName: "<<name<<"\n\tEmployee id= " <<emp_id<<"\n\tAdress: "<<adress<<"\n\tDepartment: "<<dept;
}
};

class student:protected virtual kuet
{ float roll;
public:
void inputid()
{input();}
void displayid()
{display();}
void inputs()
{cout<<"\n\n\tGive the roll no=";cin>>roll;}
void displays()
{cout<<"\n\tRoll no= "<<roll;}
};
//=================(student)================class==============

class un_graduate:protected student
{
float cgpa,sm_star,year;
public:
int a;
void inputu()
{
inputid();
inputs();
cout<<"\n\n\tStudents cgpa ";cin>>cgpa;
cout<<"\n\n\tCurrent semistar ";cin>>sm_star;
cout<<"\n\n\tCurrent year ";cin>>year;
}
void inputu(float)
{
cout<<"\n\n\tYou have four options.\n\t\t1)cgpa\n\t\t 2)semistar\n\t\t3)year \n\t\t4)all\n\n\t\tWhat's your choice?\t";
int ui;
cin>>ui;
if(ui==1||ui==4)
{ cout<<"\n\n\tStudents cgpa ";cin>>cgpa;
}
if(ui==2||ui==4)
{ cout<<"\n\n\tChanged semi star: ";cin>>sm_star;
}
if(ui==3||ui==4)
{ cout<<"\n\n\tChanged year ";cin>>year;
}
}
void displayu()
{
displayid();
displays();
cout<<"\n\tCgpa= "<<cgpa;
}
void searchu(float u)
{
if(u==emp_id) {a=1;}
else a=0;
}
};
//||||||||||||||class ug student||||||||||||||||||

class masters:public virtual student
{
float year;
char result[10],subject[30];
public:
int a;
void inputm()
{
cout<<"\n\n\tMaster's students subject: ";gets(subject);
cout<<"\n\n\tMaster's students result: ";gets(result);
}
void inputm(float )
{ cout<<"\nYou have two options.\n \t1)subject\t 2)result\t3)both\nWhat's your choice?\t";
int mi;
cin>>mi;
if(mi==1||mi==3)
{
cout<<"\n\n\tMaster's students subject: ";gets(subject);
}
if(mi==2||mi==3)
{
cout<<"\n\n\tMaster's students result: ";gets(result);
}
}
void displaym()
{
cout<<"\n\tStudents(masters) subject: "<<subject;
cout<<"\n\tStudents(masters) result: "<<result;
}
void searchm(float m)
{
if(m==emp_id) {a=1;}
else a=0;
}
};
//##########class masters of students#####################################

class phd:public virtual student
{
char topic[30];
public:
int a;
void inputp()
{
cout<<"\n\n\tWhich topic? ";gets(topic);
}
void inputp(float )
{
cout<<"\n\n\tWhat is the changed topic? ";gets(topic);
}
void displayp()
{
cout<<"\n\tTopic: "<<topic;
}
void searchp(float p)
{
if(p==emp_id) {a=1;}
else a=0;
}
};
//_____________class PHD___________________________

class teacher:virtual protected kuet
{
private:
float salary,exp;
public:
int a;
void inputt()
{ input();
cout<<"\n\n\tGive monthly salary= ";cin>>salary;
}
void inputt(float)
{
cout<<"\n\n\tGive changed monthly salary= ";cin>>salary;
}
void displayt()
{ display();
cout<<"\n\tMonthly salary= "<<salary<<" taka";
}
void searcht(float t)
{
if(t==emp_id) {a=1;}
else a=0;
}
};
//------------class teacher-------------

class teastd:virtual protected teacher,public virtual masters,public virtual phd
{
public:
int a;
void inputts()
{
inputt();
inputs();
}
void inputts(float sid)
{
inputt(sid);
}

void displayts()
{
displayt();
displays();
}
void searchts(float ts)
{
if(ts==emp_id) {a=1;}
else a=0;
}
void searchts(float ts,teastd &tp)
{
if(ts==tp.emp_id) {a=1;}
else a=0;
}
};
//==================================class teacher and student============

class officer:protected virtual kuet
{
private:
float rank,dues;
public:
int a;
void inputo()
{ input();
cout<<"\n\n\tRanking(float)= ";cin>>rank;
}
void inputo(float)
{
cout<<"\n\n\tChanged Ranking(float)= ";cin>>rank;
}
void displayo()
{
display();
cout<<"\n\tRanking (float)= "<<rank;
}
void searcho(float o)
{
if(o==emp_id) {a=1;}
else a=0;
}
};
//@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@class officer@@@@@@@@@@@

class offstd:virtual protected officer,public virtual masters,public virtual phd
{
public:
int a;
void inputos()
{
inputo();
inputs();
}
void inputos(float oid)
{
inputo(oid);
}
void displayos()
{
displayo();
displays();
}
void searchos(float os)
{
if(os==emp_id)
{a=1;}
else a= 0;
}
void searchos(float os,offstd &op)
{
if(os==op.emp_id) {a=1;}
else a= 0;
}
};
//===========================officer and student=======================

int main()

{
clrscr();

un_graduate u[20];
masters m[20];
phd p[20];
teacher t[20];
officer o[20];
teastd ts[20];
offstd os[20];

char ch[20],c[20],ca[20];
int index,i,j,k,x,ids,idt,ido;
float id;

while(1)
{ textcolor(114);
textbackground(4);

clrscr();
cout<<"\n\n\t1:OPENING ID FOR STUDENTS\n\t2:OPENINGID OF TEACHERS\n\t3:OPEN ID FOR OFFICERS\n\t4:DISPLAY OPTION\n\t5:EDITING INFORMATION\n\t6:SEARCHING\n\t7:Quit\n\t";

for(int e=0;e<3;e++)
{
delay(500);
cout<<" . ";
}
cout<<"\n\n\t\tWhat is your option?\n\n\t\t ";
cin>>index;

switch(index)
{
case 1:
clrscr();
cout<<"\n\n\tHOW MANY ID'S FOR STUDENTS\n\n\t\t";
cin>>ids;
for(i=0;i<ids;i++)
{
cout<<"\n\n\tPRESS 'u' FOR U.G. students,\n\n\t'm' FOR ONLY MASTERS and\n\n\t 'p' FOR ONLY PHD STUDENTS\n\n\t\t";
cin>>c[i];
if(c[i]=='u')
{ clrscr();
u[i].inputu(); //ug input
}
if(c[i]=='m')
{ clrscr();
m[i].inputid();
m[i].inputm();
} //masters input
if(c[i]=='p')
{ clrscr();
p[i].inputid();
p[i].inputp();
} //phd input
}
break; //opening id of students

case 2:
clrscr();
cout<<"\n\n\tHOW MANY ID'S FOR TEACHERS\n\n\t\t";
cin>>idt;
for(j=0;j<idt;j++)
{
cout<<"\n\n\t\tIF THE TEACHER IS A STUDENT OF MASTERS OR PHD,\n\tTHEN PRESS 's' FOR MASTERS AND 'h' FOR PHD \n\tAND IF ONLY TEACHER THEN,PRESS't'\n\n\t\t\t";
cin>>ch[j];

if(ch[j]=='t')
{ clrscr();
t[j].inputt();
}

if(ch[j]=='s')
{ clrscr();
ts[j].inputts();
ts[j].inputm(); //teacher+mas
}

if(ch[j]=='h')
{ clrscr();
ts[j].inputts(); //teacher+phd
ts[j].inputp();
}

}
break;
//===================opening teacher------------------- id

case 3:
clrscr();
cout<<"\n\n\tHOW MANY ID'S FOR OFFICERS\n\n\t\t";
cin>>ido;
for(k=0;k<ido;k++)
{ cout<<"\n\n\t\tIF THE OFFICER IS A STUDENT OF MASTERS OR PHD,\n\tTHEN PRESS 'f' FOR MASTERS AND 'd' FOR PHD \n\tAND IF ONLY OFFIER THEN,PRESS'o'\n\n\t\t\t";
cin>>ca[k];

if(ca[k]=='o')
{clrscr();
o[k].inputo();
}
if(ca[k]=='f')
{ clrscr();
os[k].inputos();
os[k].inputm(); //officer+mas
}
if(ca[k]=='d')
{clrscr();
os[k].inputos();
os[k].inputp(); //officer+phd
}
} //for ends
break;

case 4:
cout<<"\n\tYOU MAY SEE INFORMATIONS OF\n\tSTUDENTS BY PRESSING 1\n\tTEACHERS BY PRESSING 2\n\tOFFICER BY PRESSING3\n";
int n;
cin>>n;
if(n==1)
{
for(i=0;i<ids;i++)
{
if(c[i]=='u')
u[i].displayu();

if(c[i]=='m')
{
m[i].displayid();
m[i].displaym();
}
if(c[i]=='p')
{
p[i].displayid();
p[i].displayp();
}
}
}
if(n==2)
{
for(j=0;j<idt;j++)
{
if(ch[j]=='t')
t[j].displayt();

if(ch[j]=='s')
{
ts[j].displayts();
ts[j].displaym();
}
if(ch[j]=='h')
{
ts[j].displayts();
ts[j].displayp();
}
}
}

if(n==3)
{
for(k=0;k<ido;k++)
{
if(ca[k]=='o')
o[k].displayo();

if(ca[k]=='f')
{
os[k].displayos();
os[k].displaym();
}
if(ca[k]=='d')
{
os[k].displayos();
os[k].displayp();
}
}
}
getch();
break;

case 5:
cout<<"\n Give employee id: ";
cin>>id;
for(i=0;i<ids;i++)
{
u[i].searchu(id);
{
if(u[i].a==1)
{u[i].inputu(id);
goto y;}
}
m[i].searchm(id);
{ if(m[i].a==1)
{m[i].inputm(id);
goto y;
}
}
p[i].searchp(id);
{ if(p[i].a==1)
{p[i].inputp(id);
goto y;}
}
}
for(j=0;j<idt;j++)
{
t[j].searcht(id);
{if(t[j].a==1)
{t[j].inputt();
goto y; }
}
ts[j].searchts(id);
{if(ts[j].a==1)
{ts[j].inputm(id);
goto y;}
}
ts[j].searchts(id,ts[j]);
{if(ts[j].a==1)
{ts[j].inputts(id);
ts[j].inputp(id);
goto y;}
}
}
for(k=0;k<idt;k++)
{
o[k].searcho(id);
{ if(o[k].a==1)
{o[k].inputo(id);
goto y;}
}
os[k].searchos(id);
if(os[j].a==1)
{os[j].inputos(id);
os[j].inputm(id);
goto y;}
os[k].searchos(id,os[k]);
if(os[j].a==1)
{os[j].inputos(id);
os[j].inputp(id);
goto y;}
}
y:break;

case 6:
int s=0;
clrscr();
cout<<"\n\n\tGive employee id: ";
cin>>id;

for(i=0;i<ids;i++)
{
u[i].searchu(id);
{
if(u[i].a==1)
{ cout<<"\n\tSEARCHING ";
for(int e=0;e<8;e++)
{
delay(500);
cout<<" . ";
}
u[i].displayu();
getch();
goto z;}
}
m[i].searchm(id);
{ if(m[i].a==1)
{ cout<<"\n\tSEARCHING ";
for(int e=0;e<8;e++)
{
delay(500);
cout<<" . ";
}
m[i].displayid();
m[i].displaym();
getch();
goto z;
}
}
p[i].searchp(id);
{ if(p[i].a==1)
{ cout<<"\n\tSEARCHING ";
for(int e=0;e<8;e++)
{
delay(500);
cout<<" . ";
}
p[i].displayid();
p[i].displayp();
getch();
goto z;
}
}
}

for(j=0;j<idt;j++)
{
t[j].searcht(id);
{ if(t[j].a==1)
{ cout<<"\n\tSEARCHING ";
for(int e=0;e<8;e++)
{
delay(500);
cout<<" . ";
}
t[j].displayt();
getch();
goto z; }
}
ts[j].searchts(id);
{ if(ts[j].a==1)
{ cout<<"\n\tSEARCHING ";
for(int e=0;e<8;e++)
{
delay(500);
cout<<" . ";
}
ts[j].displayts();
ts[j].displaym();
getch();
goto z;}
}
ts[j].searchts(id,ts[j]);
{ if(ts[j].a==1)
{ cout<<"\n\tSEARCHING ";
for(int e=0;e<8;e++)
{
delay(500);
cout<<" . ";
}
ts[j].displayts();
ts[j].displayp();
getch();
goto z;
}
}
}
for(k=0;k<ido;k++)
{
o[k].searcho(id);
{ if(o[k].a==1)
{ cout<<"\n\tSEARCHING ";
for(int e=0;e<8;e++)
{
delay(500);
cout<<" . ";
}
o[k].displayo();
getch();
goto z;
}
}
os[k].searchos(id);
{ if(os[k].a==1)
{ cout<<"\n\tSEARCHING ";
for(int e=0;e<8;e++)
{
delay(500);
cout<<" . ";
}
os[k].displayos();
os[k].displaym();
getch();
goto z;
}
}
os[k].searchos(id,os[k]);
{ if(os[k].a==1)
{ cout<<"\n\tSEARCHING ";
for(int e=0;e<8;e++)
{
delay(500);
cout<<" . ";
}
os[k].displayos();
os[k].displayp();
getch();
goto z;
}
}
}
if(s==n)
{
cout<<"\nNot found\n";
getch();
goto z;
}
z:break;
case 7:break;

default:
cout<<"\n\n\n\tWRONG INPUT,PLEASE TRY AGAIN\n";
getch();
break;
} //switch ends
if(index==7)
break;
} //while ends
return 0;
} //end of main function

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C++ Project Code for Students & Teachers Information System

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