C Plus Plus Project : University Cgpa calculation

Cpp Project: University Cgpa calculation

 #include<fstream>    //using file  
 #include<string.h>   //character of array  
 #include<iostream>   //C++  
 #include<stdio.h>    //c header file  
 #include<stdlib.h>   //color header file  
 using namespace std;  
 class student      //class name  
 {  
 public:  
   char name[40];  
   char roll[10];  
   char dep[5];  
   char batch[5];  
 //*****************************************  
   void get()  
   {  
     cout<<"\n  ENTER THE NAME     = ";  
     cin>>name;  
     cout<<"  ENTER THE ROLL     = ";  
     cin>>roll;  
     cout<<"  ENTER THE DEPARTMENT  = ";  
     cin>>dep;  
     cout<<"  ENTER THE BATCH     = ";  
     cin>>batch;  
   }                       // back 118  
 };  
 //*****************************************  
 class cgpa:public student        // INHERITANCE  
 {  
 // **************************************** member variable  
 public:  
   char subname[10][20];  
   char subcode[10][20];  
   float gpa[10];  
   float credit[10];  
   float totalcredit;  
   float subg[10];  
   float total;  
   int i;  
   float grade;  
   char gradeno[4];  
 //**************************************** member function  
 public:  
   void getgpa();  
   void file();  
   void gra(float);  
 };  
 //****************************************  
 //grade calculation  
 //****************************************  
 void cgpa::gra(float k)       // from 171  
 {  
   while(1)  
   {  
     if(k<=.99)  
     {  
       strcpy(gradeno,"F"); //**********string copy  
       break;  
     }  
     else if(k<=1)  
     {  
       strcpy(gradeno,"D" );  
       break;  
     }  
     else if(k<=1.30)  
     {  
       strcpy(gradeno,"D+" );  
       break;  
     }  
     else if(k<=1.70)  
     {  
       strcpy(gradeno,"c-" );  
       break;  
     }  
     else if(k<=2)  
     {  
       strcpy(gradeno,"c" );  
       break;  
     }  
     else if(k<=2.3)  
     {  
       strcpy(gradeno,"c+" );  
       break;  
     }  
     else if(k<=2.70)  
     {  
       strcpy(gradeno,"B-" );  
       break;  
     }  
     else if(k<=3.0)  
     {  
       strcpy(gradeno,"B" );  
       break;  
     }  
     else if(k<=3.3)  
     {  
       strcpy(gradeno,"B+" );  
       break;  
     }  
     else if(k<=3.70)  
     {  
       strcpy(gradeno,"A-" );  
       break;  
     }  
     else if(k<=4.0)  
     {  
       strcpy(gradeno,"A" );  
       break;  
     }  
     else if(k==4)  
     {  
       strcpy(gradeno,"A+" );  
       break;  
     }  
   }  
 }                    // goto 171  
 //************************************** getting subject code & credit  
 void cgpa::getgpa() //come in 174  
 {  
   get(); // goto line 22  
   totalcredit =0;  
   total=0;  
   cout<<"\n+++++++++++++++++  ABOUT RESULT \n";  
   cout<<"\n  HOW MANY SUBJECT IN HIS/ HER EXAM HE/SHE ATTEND =  ";  
   cin>>i;  
   for(int j=0; j<i; j++)  
   {  
     cout<<"\n";  
     cout<<" [] SUBJECT NAME      =  ";  
     cin>>subname[j];  
     cout<<" [] SUBJECT CODE      =  ";  
     cin>>subcode[j];  
 Y:  
     cout<<" [] CREDIT OF THAT SUBJECT =  ";  
     cin>>credit[j];  
     if(credit[j]<=4)  
     {  
       cout<<"";  
     }  
     else  
     {  
       cout<< "\n..............................\n   EROR 404 \n YOUR input WAS WRONG (-_-)\n [ please try again ] \n..............................\n";  
       goto Y;  
     }  
 z:  
     cout<<" [] GPA OF THAT SUBJECT   =  ";  
     cin>>gpa[j];  
     if(gpa[j]<=credit[j])  
     {  
       cout<<"";  
     }  
     else  
     {  
       cout<< "\n..............................\n   EROR 404 \n YOUR input WAS WRONG (-_-)\n [ please try again ] \n..............................\n";  
       goto z;  
     }  
     cout<<"\n+++++++++++++++++  ";  
     totalcredit=totalcredit+credit[j];  
     subg[j]=gpa[j]*credit[j];  
     total=subg[j]+total;  
   }  
 // grade calculation  
   grade=total/totalcredit;  
   cout<<"\n [] RESULT         =  "<<grade;  
   gra(grade);         // goto line 58  
   cout<<"\n [] GRADE          =  "<<gradeno;  
   cout<<"\n********************************************************************************\n";  
 // result store kora hoyeche  
   fstream x("RESULT",ios::app|ios::out);  
   x<<endl<<"\t"<<name<<"\t"<<roll<<"\t"<<grade<<"\t"<<gradeno<<endl;  
   x.close();         // back to 174  
 }  
 //******************************(IT STORE MY INFORMATION USING FILE )  
 void cgpa::file()  // come in from 219  
 {  
   getgpa(); // goto line 115  
   ofstream out(roll);  
   out<<"\n  NAME    = "<<name;  
   out<<"\n  ROLL    = "<<roll;  
   out<<"\n  DEPARTMENT = "<<dep;  
   out<<"\n  BATCH    = "<<batch;  
   out<<"\n\n\n SUBJECT NAME = Subject Code --- CREDIT of that SUBJECT---YOUR GPA ";  
   for(int j=0; j<i; j++)  
   {  
     out<<"\n";  
     out<<" "<<subname[j];  
     out<<"\t\t  "<<subcode[j];  
     out<<"\t\t  " ;  
     out<<credit[j];  
     out<<"  \t\t\t" ;  
     out<<gpa[j];  
   }  
   out<<"\n------------------------------\n\n  TOTAL CREDIT   = "<<totalcredit;  
   out<<"\n\n  TOTAL GRADE POINT = "<<grade;  
   out<<"\n\n  CGPA       = "<<gradeno;  
   out<<"\n********************************************************************************\n";  
   out.close();  // end of file // end of input 1  
 }  
 //*****************************************************************************( MAIN FUNCTION )  
 int main()  
 {  
   int p;  
   system("color 2");//color  
   while(1)  
   {  
     cout<<"\n  \t\t \t ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \n";  
     cout<<" \t\t\t|   ""EAST WEST UNIVERSITY\t  |";  
 z:  
     cout<<"\n \t \t\t ---------------------------------- \n \t \t\t|    SELECT YOUR OPTION    |\n\t\t\t|\t\t\t\t  |";  
     cout<<"\n ";  
     cout<<"\t\t\t| 1...INPUT\t\t\t  |\n \t\t\t| 2...SEARCH\t\t\t  |\n    \t \t| 3...SHOW ( TOTAL RECORD )\t  | \n \t\t\t| 4...LOGOUT\t\t\t  |";  
     cout<<"\n\t\t\t ----------------------------------\nYOU CHOOSE= ";  
     cin>>p;  
     cout<<"-----------------------------------------------------------";  
     system("cls");  
     if(p==1)  
     {  
       cout<<"\n\t\t\tBASIC INFORMATION :\n";  
       cgpa x;  
       x.file(); //goto line 172  
     }  
     else if(p==2)  
     {  
       //system("cls");  
       cout<<"\n\n  INPUT The ROLL  = ";  
       char roll[20];  
       cin>>roll;  
       cout<<"\n";  
       cout<<"------------------------------HERE WE FOUND ";  
       cout<<"\n";  
       char c;  
       ifstream x(roll); ///////  
       if(!x)  
       {  
         cout<<"\nWE CAN'T FIND ANYTHING \n\n";  
         cout<<"------------------------------";  
       }  
       else  
         while(x)  
         {  
           x.get(c);  
           cout<<c;  
         }  
     }  
     else if(p==3)  
     {  
       char c;  
       cout<<"\n\n\n\tTOTAL RECORD are HERE \n";  
       cout<<"-----------------------------------------------------------";  
       cout<<"\n\tNAME  ROLL  CGPA   GRADE\n";  
       cout<<"-----------------------------------------------------------";  
       ifstream x("RESULT");  
       if(!x)  
       {  
         cout<<"\nWE CAN'T FIND ANYTHING \n\n";  
         cout<<"------------------------------";  
       }  
       else  
         while(x)  
         {  
           x.get(c);  
           cout<<c;  
         }  
     }  
     else if(p==4)  
     {  
       cout<<"\n\n\n\tTHANK YOU FOR USING THIS PROGRAM !!!!!!!!\n\n\n\n\n\n\n\n\n";  
       break;  
     }  
     else  
     {  
       cout<<"\n";  
       cout<<"..............................\n   EROR 404 \n YOUR input WAS WRONG (-_-)\n [ please try again ] \n..............................";  
       cout<<"\n";  
       goto z;  
     }  
   }  
   return 0;  
 }