If statement re-do problem

Ok i took a problem from the book where i had to write a progrm that will take how much is in yer bank account, wether you want to deposit or w/drawl, then checks yer new balance. It accepts capital and lowercase "W" and "D", but i want it to re-prompt for a transaction type when it gets a invalid type. Which it DOES but not till after it asks for the transaction amount:

Code:

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//Program file chkbook.cpp
//This program updates a checkbook
//9-9-02

#include <iostream.h>
#include <iomanip.h>

int main ()
{
        double startingbalance, endingbalance, transamount;
        char transtype;

        //Module for getting the data.

        cout<<"Enter the Starting Balance abd press <enter>: ";
        cin>>startingbalance;
        cout<<"Enter the Transaction Type (D) Deposit or (W) Withdrawl ";
        cout<<"And press <enter>: ";
        cin>>transtype;
        cout<<"Enter the transaction amount and press <enter>: ";
        cin>>transamount;

        //Module for performing computations.

        if (transtype == 'D')
                endingbalance = startingbalance + transamount;
        else if (transtype == 'd')
                endingbalance = startingbalance + transamount;
        else if (transtype == 'W')
                endingbalance = startingbalance - transamount;
        else if (transtype == 'w')
                endingbalance = startingbalance - transamount;
        else
                cout<<"Incorrect Transaction Type please re-enter "<<endl;
                cout<<"Enter the Transaction Type (D) Deposit or (W) Withdrawl ";
                cout<<"And press <enter>: ";
                cin>>transtype;
               

        //Module for displaying results

        cout<<setiosflags(ios::fixed | ios::showpoint | ios::right)<<setprecision(2);
        cout<<endl;
        cout<<"Starting Balance $"<<startingbalance<<endl;
        cout<<"Transaction      $"<<transamount<<" "<<transtype<<endl;
        cout<<"Ending Balance  $"<<endingbalance<<endl;

        return 0;

}

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What you need to do is get the transaction typ, check and validate it is D, d, w or W and then get the transaction amount. If it is not a valid input then post a message and let them try again using a loop.

- Sean

so kinda like:

If transaction type not equal to letter reprompt.

I get that its how to do it. I'll figure it out in lunch tommorow i am beat i been doing different c++ scince 3rd period and i gotta tell ya, my vb oriented mind is hurt

i can't get it, i dunno why i cannot make this stupid if thingy work.

Code:

---

//Program file chkbook.cpp
//This program updates a checkbook
//9-9-02

#include <iostream.h>
#include <iomanip.h>

int main ()
{
        double startingbalance, endingbalance, transamount;
        char transtype;

        cout<<"Enter the Starting Balance and press <enter>: ";
        cin>>startingbalance;

        //Module for getting the data.
        while (1){
                cout<<"Enter the Transaction Type (D) Deposit or (W) Withdrawl ";
                cout<<"And press <enter>: ";
                cin>>transtype;
                cout<<"Enter the transaction amount and press <enter>: ";
                cin>>transamount;

                //Module for performing computations.

                if(transtype == 'D' || transtype == 'd'){
                        endingbalance = startingbalance + transamount;
                        break;
                }
                else if(transtype == 'W' || transtype == 'w'){
                        endingbalance = startingbalance - transamount;
                        break;
                }
                else{
                        cout << "Improper transaction type. Try again" << endl;
                        continue;
                }
        }
       
        //Module for displaying results
       
        cout<<setiosflags(ios::fixed | ios::showpoint | ios::right)<<setprecision(2);
        cout<<endl;
        cout<<"Starting Balance $"<<startingbalance<<endl;
        cout<<"Transaction      $"<<transamount<<" "<<transtype<<endl;
        cout<<"Ending Balance  $"<<endingbalance<<endl;
       
        return 0;

}

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omg thanks i get it now. I just needed to see it done a different way, thanks man.