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  1. #include <iostream>
  2. #include<fstream>
  3. #include <cstdio>
  4.  
  5. using namespace std;
  6.  
  7. class exchange{
  8.     public:
  9.     string num,name,pass,cash,findNum,findPass;
  10.     float bal,sentMoney;
  11.     fstream file,file_1;
  12.  
  13.     void signUp()
  14.     {
  15.         cout<<endl<<"----------SIGNUP---------"<<endl;
  16.         cout<<endl<<"Enter Your Name : ";
  17.         getline(cin,name);
  18.         cout<<endl<<"Enter Your Phone Number : ";
  19.         getline(cin,num);
  20.         cout<<endl<<"Enter Your Password : ";
  21.         getline(cin,pass);
  22.  
  23.         file.open("loginData.txt",ios :: out | ios :: app);
  24.         file<<num<<"*"<<pass<<"*"<<name<<"*0"<<endl;
  25.         file.close();
  26.     }
  27.  
  28.     void logIn()
  29.     {
  30.         cout<<endl<<"----------LOGIN---------"<<endl;
  31.         cout<<endl<<"Enter Your Phone Number : ";
  32.         getline(cin,findNum);
  33.         cout<<endl<<"Enter Your Password : ";
  34.         getline(cin,findPass);
  35.  
  36.         file.open("loginData.txt",ios :: in);
  37.         getline(file,num,'*');
  38.         getline(file,pass,'*');
  39.         getline(file,name,'*');
  40.         getline(file,cash,'\n');
  41.         bool f=true;
  42.         while(!file.eof())
  43.         {
  44.             if(findNum==num && findPass==pass)
  45.             {
  46.                 cout<<endl<<"Hello "<<name<<endl;
  47.                 f=false;
  48.                 break;
  49.             }
  50.             else
  51.             {
  52.                 getline(file,num,'*');
  53.                 getline(file,pass,'*');
  54.                 getline(file,name,'*');
  55.                 getline(file,cash,'\n');
  56.             }
  57.  
  58.         }
  59.         if(f) cout<<endl<<"Invalid Password or Number";
  60.         file.close();
  61.  
  62.         bal=stof(cash);
  63.     }
  64.     void balance()
  65.     {
  66.  
  67.         cout<<endl<<"Your Account Balance is : ";
  68.         printf("%.2f TK",bal);
  69.     }
  70.     void sent()
  71.     {
  72.         string revNum,revName,revPass,revCash;
  73.         float revBal;
  74.         cout<<endl<<"Enter Receiver Number : ";
  75.         getline(cin,revNum);
  76.         cout<<endl<<"Enter the Amount : ";
  77.         cin>>sentMoney;
  78.  
  79.         file.open("loginData.txt",ios :: in);
  80.         file_1.open("new.txt",ios :: out | ios :: app);
  81.  
  82.         getline(file,num,'*');
  83.         getline(file,pass,'*');
  84.         getline(file,name,'*');
  85.         getline(file,cash,'\n');
  86.         while(!file.eof())
  87.         {
  88.             if(findNum==num)
  89.             {
  90.                 bal-=sentMoney;
  91.                 cash=to_string(bal);
  92.             }
  93.             else if(revNum==num)
  94.             {
  95.                 revBal=stof(cash);
  96.                 cash=to_string(revBal+sentMoney);
  97.             }
  98.             file_1<<num<<'*'<<pass<<'*'<<name<<'*'<<cash<<endl;
  99.             getline(file,num,'*');
  100.             getline(file,pass,'*');
  101.             getline(file,name,'*');
  102.             getline(file,cash,'\n');
  103.  
  104.         }
  105.         file.close();
  106.         file_1.close();
  107.  
  108.         remove("loginData.txt");
  109.         rename("new.txt","loginData.txt");
  110.  
  111.         cout<<endl<<"Successful...!";
  112.  
  113.     }
  114.  
  115.  
  116. }money;
  117.  
  118. int main()
  119. {
  120.     char choice;
  121.     cout<<"\n---------LenDen App--------\n";
  122.     cout<<"\n1- Login";
  123.     cout<<"\n2- Sign-Up";
  124.     cout<<"\n3- Exit";
  125.     cout<<"\nEnter Your Choice :: ";
  126.     cin>>choice;
  127.  
  128.     switch(choice){
  129.         case '1':
  130.             cin.ignore();
  131.             money.logIn();
  132.             char c;
  133.             cout<<"\n1- Check balance";
  134.             cout<<"\n2- Send Money";
  135.             cout<<"\nEnter Your Choice :: ";
  136.             cin>>c;
  137.             cin.ignore();
  138.             if(c=='1')
  139.             {
  140.                 money.balance();
  141.             }
  142.             else
  143.             {
  144.                 money.sent();
  145.             }
  146.         break;
  147.         case '2':
  148.             cin.ignore();
  149.             money.signUp();
  150.         break;
  151.         case '3':
  152.             return 0;
  153.         break;
  154.         defualt:
  155.             cout<<"Invalid Selection...!";
  156.     }
  157.     return 0;
  158. }
Success #stdin #stdout 0s 5276KB
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stdin
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stdout
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---------LenDen App--------

1- Login
2- Sign-Up
3- Exit
Enter Your Choice ::
https://ideone.com/DsdUR7
online Money Transfer (own)
language:
C++14 (gcc 8.3)
created:
189 days ago
visibility:
public

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