void Transaction::on_loanButton_clicked()
{
Loan loan;
loan.setPrimaryKey(getPrimaryKey());
loan.exec();
loadLCD(getPrimaryKey());
return ;
}
int main(){
fstream fout;
Loan account[5];
Loan tmp;
double totalLoan;
cout<<"Select"<<endl;
cout<<"0.Exit"<<endl;
cout<<"1.Write"<<endl;
cout<<"2.Read"<<endl;
char ch;
cin>>ch;
while (true)
{
switch (ch)
{
case '0':
return 0;
break;
case '1':
srand( (unsigned)time(NULL));
fout.open("Exercise12_6.dat",ios::out|ios::binary|ios::app);
for(int i=0;i<5;i++){
account[i]=Loan(rand()%10+1,rand()%10+1,rand()%100000+1);
fout.write(reinterpret_cast<char *>(&account[i]),sizeof(Loan));
}
fout.close();
cout<<"finish!!"<<endl;
break;
case '2':
totalLoan=0;
fout.open("Exercise12_6.dat",ios::in|ios::binary);
while(!fout.eof()){
fout.read(reinterpret_cast<char *>(&tmp),sizeof(Loan));
if (fout.eof())
{
break;
}
totalLoan+=tmp.getLoanAmount();
cout<<tmp.getLoanAmount()<<endl;
}
cout<<endl<<endl<<totalLoan<<endl;
fout.close();
cout<<"finish!!"<<endl;
break;
default:
cout<<"please Again!"<<endl;
break;
}
cin>>ch;
}
}
double calTotalLoanFromFile(char* filename)
{
fstream input;
input.open(filename, ios::in | ios::binary);
Loan tmp;
double totalAmount = 0;
while(!input.eof())
{
input.read(reinterpret_cast<char *>(&tmp),sizeof(Loan));
totalAmount += tmp.getLoanAmount();
}
input.close();
return totalAmount;
}
int main() {
// Effective April 1, 2013
std::map<std::string, Loan> loans;
float extra = 0.0f;
loans["ford"] = Loan(11352.00f, 0.00f, 500.00f);
loans["ford_esp"] = Loan( 1369.60f, 0.00f, 105.35f);
loans["mancini"] = Loan( 2000.00f, 0.00f, 200.00f);
loans["ucsc"] = Loan(63609.87f, 0.068f, 750.00f);
loans["crv"] = Loan( 5054.00f, 0.030f, 107.47f);
loans["calpoly"] = Loan(13988.00f, 0.068f, 219.34f);
loans["bauman"] = Loan();
loans["house"] = Loan();
Loan big_loan = Loan(10000000.0f, 0.0f, 0.0f);
printf(" -- ");
for(std::map<std::string, Loan>::iterator it = loans.begin(); it != loans.end(); ++it) {
printf("%12s ", it->first.c_str());
}
std::cout << std::endl;
for(int month = 0; month < 180; ++month) {
if(month == 12) {
loans["bauman"] = Loan(10000.00f, 0.00f, 555.55f);
}
if(month == 24) {
loans["house"] = Loan(500000.00f, 0.035f, 2500.00f);
}
extra += 120.00;
printf("%03d -- ", month);
Loan *extra_target = &big_loan;
for(std::map<std::string, Loan>::iterator it = loans.begin(); it != loans.end(); ++it) {
if(it->second.getBalance() > 0) {
if(it->second.getBalance() < extra_target->getBalance()) {
extra_target = &(it->second);
}
}
}
for(std::map<std::string, Loan>::iterator it = loans.begin(); it != loans.end(); ++it) {
Loan *loan = &(it->second);
loan->printBalance();
loan->addInterest(30);
if(loan == extra_target) {
extra = loan->makePayment(extra);
} else {
extra += loan->makePayment();
}
}
std::cout << std::endl;
}
for(std::map<std::string, Loan>::iterator it = loans.begin(); it != loans.end(); ++it) {
printf("%12s -- \n", it->first.c_str());
printf(" -- Total Paid: %8.2f\n", it->second.getTotalPaid());
printf(" -- Interest Accrued: %8.2f\n", it->second.getInterestAccrued());
std::cout << std::endl;
}
return 0;
}