!! Öğrenci Bilgi Sistemi

#include<conio.h>i 
  #include<iostream> 
   
  using namespace std; 
   
  #define OgrenciSayisi 20; 
   
  int ogrenciNo[20]; 
  string ogrenciAd[20]; 
  string ogrenciSoyad[20]; 
   
  main() 
  { 
        ogrenciNo[0]=1234; 
        ogrenciAd[0]="Fatma"; 
        ogrenciSoyad[0]="Sucune"; 
   
        ogrenciNo[1]=9876; 
        ogrenciAd[1]="Ali"; 
        ogrenciSoyad[1]="Kaptan"; 
   
   
        int secim; 
   
        while(secim!=6) 
        { 
            cout<<endl<<"\t-----------------OGRENCI BILGI SISTEMI---------------------"<<endl; 
            cout<<"\t1-Ogrenci Listeleme"<<endl; 
            cout<<"\t2-Ogrenci Arama"<<endl; 
            cout<<"\t3-Ogrenci Ekleme"<<endl; 
            cout<<"\t4-Ogrenci Silme"<<endl; 
            cout<<"\t5-Ogrenci Guncelleme"<<endl; 
            cout<<"\t6-Cikis"<<endl<<endl<<endl; 
            cout<<"\t--------Eren Eylikler - Erciyes Universitesi (2011)--------"<<endl<<endl<<endl; 
   
            cout<<"\tSecim?"; 
   
            cin>>secim; 
   
            switch (secim) 
            { 
               case 1: 
               { 
                    cout<<endl<<"Ogrenci Listeleme Sayfasi"<<endl; 
                    cout<<endl<<"OgrenciNo\tOgrenciAdi\tOgrenciSoyadi"<<endl; 
                    cout<<endl<<"---------\t----------\t-------------"<<endl; 
   
                    int i; 
                    for(i=0;i<20;i++) 
                    { 
                        if(ogrenciNo[i]!=0) 
                        { 
                            cout<<endl<<ogrenciNo[i]<<"\t\t"<<ogrenciAd[i]<<"\t\t"<<ogrenciSoyad[i]<<endl; 
                        } 
                    } 
   
               } 
               break; 
   
               case 2: 
               { 
                    cout<<endl<<"Ogrenci Arama Sayfasi"<<endl; 
   
                    int oNo; 
                    int control2=0; 
   
                    while(control2==0) 
                    { 
                        cout<<"Aramak Istediginiz Ogrencinin Nosu?"; 
                        cin>>oNo; 
   
                        if((oNo>=1000)&&(oNo<=9999)) 
                        { 
                            control2=1; 
                        } 
                        else 
                        { 
                           cout<<endl<<"OgrenciNo Pozitif Ve 4 Haneli Olmalidir!"<<endl; 
                        } 
                    } 
   
                    int control=0; 
   
                    int i; 
                    for(i=0;i<20;i++) 
                    { 
                       if(ogrenciNo[i]==oNo) 
                       { 
                           control=1; 
   
                           cout<<endl<<"ONo\tOAdi\tOSoyadi"<<endl; 
                           cout<<endl<<"---\t----\t-------"<<endl; 
   
                           cout<<endl<<ogrenciNo[i]<<"\t"<<ogrenciAd[i]<<"\t"<<ogrenciSoyad[i]<<endl; 
                       } 
                    } 
   
                    if(control==0) 
                    { 
                        cout<<endl<<"Aradiginiz Ogrenci Bulunamadi"<<endl; 
                    } 
   
               } 
               break; 
   
               case 3: 
               { 
                    cout<<endl<<"Ogrenci Ekleme Sayfasi"<<endl; 
   
                    int oNo; 
                    string oAd,oSoyad; 
   
                    int control2=0; 
   
                    while(control2==0) 
                    { 
                        cout<<endl<<"Eklemek Istediginiz Ogrencinin Nosu?"; 
                        cin>>oNo; 
   
                        if((oNo>=1000)&&(oNo<=9999)) 
                        { 
                            int j,ogrenciVarmi=0; 
                            for(j=0;j<20;j++) 
                            { 
                                if(ogrenciNo[j]==oNo) 
                                { 
                                   ogrenciVarmi=9; 
                                   cout<<endl<<"Girdiginiz Ogrenci Var!"<<endl; 
                                   break; 
                                } 
                            } 
   
                            if(ogrenciVarmi==0) 
                                 control2=8; 
   
                        } 
                        else 
                        { 
                           cout<<endl<<"OgrenciNo Pozitif Ve 4 Haneli Olmalidir!"<<endl; 
                        } 
                    } 
   
   
                    cout<<"Eklemek Istediginiz Ogrencinin Adi?"; 
                    cin>>oAd; 
   
                    cout<<"Eklemek Istediginiz Ogrencinin Soyadi?"; 
                    cin>>oSoyad; 
   
   
                    int i; 
                    for(i=0;i<20;i++) 
                    { 
                        if(ogrenciNo[i]==0) 
                        { 
                            ogrenciNo[i]=oNo; 
                            ogrenciAd[i]=oAd; 
                            ogrenciSoyad[i]=oSoyad; 
   
                            cout<<"Kaydiniz Basariyla Eklendi"; 
                            break; 
                        } 
                    } 
               } 
               break; 
   
               case 4: 
               { 
                    cout<<endl<<"Ogrenci Silme Sayfasi"<<endl; 
   
                    int oNo; 
                    int control2=0; 
   
                    while(control2==0) 
                    { 
                        cout<<"Silmek Istediginiz Ogrencinin Nosu?"; 
                        cin>>oNo; 
   
                        if((oNo>=1000)&&(oNo<=9999)) 
                        { 
                            control2=1; 
                        } 
                        else 
                        { 
                           cout<<endl<<"OgrenciNo Pozitif Ve 4 Haneli Olmalidir!"<<endl; 
                        } 
                    } 
   
                    int control=0; 
   
                    int i; 
                    for(i=0;i<20;i++) 
                    { 
                       if(ogrenciNo[i]==oNo) 
                       { 
                           control=1; 
   
                           ogrenciNo[i]=0; 
                           ogrenciAd[i]=""; 
                           ogrenciSoyad[i]=""; 
   
                           cout<<endl<<"Silme Islemi Basariyla Tamamlandi"<<endl; 
                       } 
                    } 
   
                    if(control==0) 
                    { 
                        cout<<endl<<"Aradiginiz Ogrenci Bulunamadi"<<endl; 
                    } 
               } 
               break; 
   
               case 5: 
               { 
                    cout<<endl<<"Ogrenci Guncelleme Sayfasi"<<endl; 
   
                    int oNo; 
                    int control3=0; 
   
                    while(control3==0) 
                    { 
                        cout<<"Guncellemek Istediginiz Ogrencinin Nosu?"; 
                        cin>>oNo; 
   
                        if((oNo>=1000)&&(oNo<=9999)) 
                        { 
                            control3=1; 
                        } 
                        else 
                        { 
                           cout<<endl<<"OgrenciNo Pozitif Ve 4 Haneli Olmalidir!"<<endl; 
                        } 
                    } 
   
                    int control4=0; 
   
                    int i; 
                    for(i=0;i<20;i++) 
                    { 
                       if(ogrenciNo[i]==oNo) 
                       { 
                           control4=1; 
   
                           int yoNo; 
                           string yoAd,yoSoyad; 
   
                           cout<<endl<<"Yeni numarayi giriniz: "<<endl; 
                           cin>>yoNo; 
                           ogrenciNo[i]=yoNo; 
                           cout<<endl<<"Yeni Ogrencinin Adi: "<<endl; 
                           cin>>yoAd; 
                           ogrenciAd[i]=yoAd; 
                           cout<<endl<<"Yeni Ogrencinin Soyadi: "<<endl; 
                           cin>>yoSoyad; 
                           ogrenciSoyad[i]=yoSoyad; 
   
   
                           cout<<endl<<"Guncelleme Islemi Basariyla Tamamlandi"<<endl; 
                       } 
                    } 
   
                    if(control4==0) 
                    { 
                        cout<<endl<<"Aradiginiz Ogrenci Bulunamadi"<<endl; 
                    } 
   
   
               } 
               break; 
   
               case 6: 
               { 
                    cout<<endl<<"Uygulamadan Cikiliyor..."<<endl; 
               } 
               break; 
   
               default: 
               { 
                    cout<<endl<<"Hatali Secim!"<<endl; 
               } 
               break; 
            } 
        } 
   
        getch(); 
  }