C Plus Plus Project : Criminal Investigation

Cpp Project: Criminal Investigation  

 #include <iostream.h>  
 #include <fstream.h>  
 #include <stdio.h>  
 #include<string.h>  
 class crim_rec  
 {  
   char name[20], sex, fathr_name[20], addrs[25], offense[20], blood[5], dob[9];  
   int crim_code, reward;  
   void disp();  
 public:  
   void get();  
   void wtf();  
   void rff();  
   void search();  
   void del();  
   void mod();  
 }c;  
 void crim_rec::get()  
 {  
   puts("\nEnter name of criminal:");  
   gets(name);  
   puts("\nSex (m/f):");  
   cin>>sex;  
   puts("\nEnter date of birth:");  
   gets(dob);  
   puts("Enter blood group (Ap/An/Bp/Bn/ABp/ABn/Op/On:");  
   gets(blood);  
   puts("\nEnter father's name:");  
   gets(fathr_name);  
   puts("Enter address:");  
   gets(addrs);  
   puts("\nEnter crime commited:");  
   gets(offense);  
   puts("\nEnter reward on criminal:");  
   cin>>reward;  
 }  
 void crim_rec::disp()  
 {  
   cout<<"The record of criminal:\n";  
   cout<<"\nName of criminal: "<<name;  
   cout<<"\nsex: "<<sex;  
   cout<<"\nDOB: "<<dob;  
   cout<<"\nBlood Group: "<<blood;  
   cout<<"\nFather's name: "<<fathr_name;  
   cout<<"\nAddress: "<<addrs;  
   cout<<"\nCrime: "<<offense;  
   cout<<"\nReward: "<<reward;  
 }  
 void crim_rec::wtf()  
 {  
   ofstream ofile;  
   ofile.open("CBI", ios::app);  
   get();  
   ofile.write((char*)&c, sizeof(c));  
   ofile.close();  
 }  
 void crim_rec::rff()  
 {  
   ifstream ifile;  
   ifile.open("CBI");  
   ifile.seekg(0, ios::beg);  
   ifile.read((char*)&c, sizeof(c));  
   while(ifile)  
   {  
     disp();  
     ifile.read ((char*)&c, sizeof(c));  
   }  
   ifile.close();  
 }  
 void crim_rec::search()  
 {  
   char m[20];  
   ifstream ifile("CBI");  
   puts("Enter name of criminal which has to be searched");  
   gets(m);  
   ifile.seekg (0, ios::beg);  
   ifile.read((char*)&c, sizeof(c));  
   while(ifile)  
   {  
     if (strcmpi(m, name)==0)  
       disp();  
       ifile.read((char*)&c, sizeof(c));  
   }  
   ifile.close();  
 }  
 void crim_rec::del()  
 {  
   char b[20];  
   ifstream ifile;  
   ifile.open("CBI", ios::app);  
   ofstream ofile;  
   ofile.open("new", ios::app);  
   puts("Enter the name of the criminal whose records you want to del");  
   gets(b);  
   ifile.seekg (0, ios::beg);  
   ifile.read((char*)&c, sizeof(c));  
   while(ifile)  
   {  
     if (strcmpi(b, name))  
       ofile.write((char*)&c, sizeof(c));  
     ifile.read((char*)&c, sizeof(c));  
   }  
   ifile.close();  
   ofile.close();  
   remove ("CBI");  
   rename("new", "CBI");  
 }  
 void crim_rec::mod()  
 {  
   char d[20];  
   int p;  
   puts("\nEnter name of criminal whose record you want to modify\n");  
   gets(d);  
   fstream f;  
   f.open("CBI", ios::in|ios::out);  
   f.seekg(0, ios::beg);  
   f.read((char*)&c, sizeof(c));  
   int a=f.tellg();  
   while(! f.eof())  
   {  
     if (!strcmpi(d, name))  
     {  
       puts("\nPress 1 to change name\nPress 2 to change sex\nPress 3 to change date of birth\nPress 4 to change blood group\nPress 5 to change father's name\nPress 6 to change address\nPress 7 to change crime committed\nPress 8 to change reward on criminal\n");  
       cin>>p;  
       switch(p)  
       {  
       case 1:  
         gets(name);  
         break;  
       case 2:  
         cin>>sex;  
         break;  
       case 3:  
         gets(dob);  
         break;  
       case 4:  
         gets(blood);  
         break;  
       case 5:  
         gets(fathr_name);  
         break;  
       case 6:  
         gets(addrs);  
         break;  
       case 7:  
         gets(offense);  
         break;  
       case 8:  
         cin>>reward;  
         break;  
       }  
       f.seekg(a-sizeof(c), ios::beg);  
       f.write((char*)&c, sizeof(c));  
     }  
     f.read((char*)&c, sizeof(c));  
     a=f.tellg();  
   }  
   f.close();  
 }  
 void main ()  
 {  
   int ch;  
   char choice;  
   do  
   {  
   cout<<"\t Central Bureau of Investigation";  
   cout<<"\n ********************************************";  
   cout<<"\n\n  1. View criminal details         ";  
   cout<<"\n\n  2. Add new criminal details       ";  
   cout<<"\n\n  3. Search a criminal record       ";  
   cout<<"\n\n  4. Delete a criminal record       ";  
   cout<<"\n\n  5. Modify a criminal record       ";  
   cout<<"\n ********************************************";  
   cout<<"\n\n Enter your choice: ";  
   cin>>ch;  
   switch(ch)  
   {  
   case 1:  
        c.rff();    
     break;  
   case 2:  
       c.wtf();  
       break;  
   case 3:  
       c.search();  
       break;  
   case 4:  
     c.del();  
     break;  
   case 5:  
     c.mod();  
     break;  
   default:  
     {  
     cout<<"\nerror!";  
     }  
     break;  
   }  
   cout<<"\ncontinue? (y/n)\n";  
   cin>>choice;  
   }while(choice=='y');  
   cout<<"\nGood bye\n\n\n";  
 }