CODEWITHSUNDEEP
c++
Justin Wilker
Justin Wilker

Reputation: 65

Int not being updated in method

#include <iostream>
using namespace std;

class CreditCard {
  public:

  int balance;
  float points;
  

  CreditCard () {
    balance = 0;
    points = 0;
  }

  void charge() {
    int charge;
    cout << "Amount to charge:" << endl;
    cin >> charge;
    cout << endl;
    points = points + (charge/100.);
    balance = balance + charge;
    return;
  }

  void payment() {
    int payment;
    cout << "Amount to pay:" << endl;
    cin >> payment;
    cout << endl;
    balance = balance - payment;
    return;
  }

  void currentBal() {
    cout << endl;
    cout << "Balance: " << balance << endl;
    cout << "Points: " << points << endl;
    return;
  }
  
};

int main() {  

  int userChoice;
  bool run = true;

  while (run == true) {
  cout << "Would you like to:" << endl;
  cout << "1) Charge" << endl;
  cout << "2) Make a payment" << endl;
  cout << "3) See current balance" << endl;
  cout << "4) Quit" << endl;
  cin >> userChoice;

  CreditCard card1;
  
  switch (userChoice) {
    case 1:
      card1.charge();
      break;
    case 2:
      card1.payment();
      break;
    case 3:
      card1.currentBal();
      break;
    case 4:
      run = false;
      break;
  }
  }
    
}

I have this assignment to practice methods and classes. The program prints a menu with some options. When I choose option 1 and set the balance and then choose option 3 to print the balance, the balance stays at 0. I have put print statements in the charge method that show that balance is updated, but once I call the currentBal method, the balance gets set back to 0.

Upvotes: 1

Views: 61

Answers (1)

Lily
Lily

Reputation: 1397

Your CreditCard card1; is in the while loop, a new card gets created every iteration of the loop.

Upvotes: 6

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