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#include <cstdlib>
#include <iostream>
#include <iomanip>
using namespace std;
struct student
{
string ID;
string name;
string nick;
};
struct course
{
string code;
string name;
string lecname;
};
void displaymenu(){
cout<<"===========================================<<"\n";
cout<<" MENU "<<"\n";
cout<<"==========================================="<<"\n";
cout<<" 1.Add student records"<<"\n";
cout<<" 2.Update student records"<<"\n";
cout<<" 3.View all student records"<<"\n";
cout<<" 4.Find a student by ID"<<"\n";
}
void add_rec(struct student st[],struct course st[],int& itemcount){
again:
cout<<"\nEnter student's ID:";
cin>>st[itemcount].ID;
if(search(st,st[itemcount].ID,itemcount)!=-1){
cout<<"This ID already exists\n";goto again;
}
cout<<"Enter student's Name:";
cin>>st[itemcount].name;
cout<<"Enter student's Nickname:";cin>>st[itemcount].nick;
cout<<"Enter student's course code:";cin>>st[itemcount].code;
cout<<"Enter student's course name:";cin>>st[itemcount].name;
cout<<"Enter student's course lecturer name:";cin>>st[itemcount].lecname;
st[itemcount].total=st[itemcount].code+st[itemcount].name+st[itemcount].lecname;
++itemcount;
}
void viewall(struct student st[],struct course st[],int& itemcount){
int i=0;
cout<<left<<setw(5)<<"ID"<<setw(20)<<"NAME"<<setw(5)<<"NICKNAME"
<<setw(5)<<"COURSE CODE"
<<setw(5)<<"COURSE NAME"<<setw(5)<<"LECTURER NAME"<<setw(5)<<"\n";
cout<<"==========================================\n";
while(i<=itemcount){
if(st[i].stnumber!=""){
cout<<left<<setw(5)<<st[i].stnumber<<setw(20)<<st[i].stname<<setw(5)
<<st[i].nick;
cout<<setw(5)<<st[i].code<<setw(5)<<st[i].name<<setw(5)<<st[i].lecname<<setw(5)<<st[i].total;
cout<<"\n";}
i=i+1;
}
}
void update_rec(struct student st[],struct course st[],int& itemcount){
string id;
int column_index;
cout<<"Enter student's ID:";
cin>>id;
cout<<"Which field you want to update(1-6)?:";
cin>>column_index;
int index = search(st, id,itemcount);
if (index != -1)
{
if (column_index == 1)
{
cout<<"Enter student's Name:";
cin>>st[index].name;
}
else if (column_index == 2)
{
cout<<"Enter student's Nickname:";
cin>>st[index].nick;
}
else if (column_index == 3)
{
cout<<"Enter student's course code:";
cin>>st[index].code;
}
else if (column_index == 4)
{
cout<<"Enter student's course name:";
cin>>st[index].name;
}
else if (column_index == 5)
{
cout<<"Enter student's course lecturer name:";
cin>>st[index].lecname;
}
else cout<<"Invalid column index";
st[index].total = st[index].code + st[index].name + st[index].lecname;
}
else cout<<"The record deosn't exits.Check the ID and try again.";
}
int main(int argc, char *argv[])
{
student st[80];
int itemcount=0;
//show menu
displaymenu();
int yourchoice;
char confirm;
do
{
cout<<"Enter your choice(1-4):";
cin>>yourchoice;
switch(yourchoice){
case 1:add_rec(st, itemcount);break;
case 2:update_rec(st, itemcount);break;
case 3:viewall(st, itemcount);break;
case 4:find(st, itemcount);break;
default:cout<<"invalid";
}
cout<<"Press y or Y to continue:";
cin>>confirm;
}while(confirm=='y'||confirm=='Y');
system("PAUSE");
return EXIT_SUCCESS;
}
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