IGNOU BCS 31 2026 2027 - A banking application allows users to withdraw money from their accoun

Question

A banking application allows users to withdraw money from their account. Write a C++ program that throws and catches an exception if the withdrawal amount is greater than the available balance. Display an appropriate message for both successful and unsuccessful transactions. Make use of suitable C++ construc

08 Aug 2026

Answer :

Word Count : 1245

A banking application must ensure that a customer cannot withdraw an amount greater than the available balance in the account. In C++, this situation can be handled effectively using exception handling. Exception handling provides a structured mechanism for detecting and responding to runtime errors without abruptly terminating the program. The main constructs used for exception handling in C++ are `try`, `throw`, and `catch`. In this banking application, the withdrawal operation can check whether the requested amount is greater than the account balance. If it is greater, an exception is thrown and an appropriate error message is displayed. If the withdrawal amount is within the available balance, the transaction is completed successfully and the remaining balance is displayed. A suitable C++ program can be written as follows: ```cpp #include #include using namespace std; class BankAccount { private: double balance; public: // Constructor BankAccount(double initialBalance) { balance = initialBalance; } // Function to withdraw money void withdraw(double amount) { if (amount <= 0) { throw invalid_argument("Withdrawal amount must be greater than zero."); } if (amount > balance) { throw runtime_error("Insufficient balance. Withdrawal cannot be completed."); } balance -= amount; cout << "Withdrawal successful." << endl; cout << "Amount withdrawn: Rs. " << amount << endl; cout << "Remaining balance: Rs. " << balance << endl; } // Function to display balance void displayBalance() { cout << "Available balance: Rs. " << balance << endl; } }; int main() { double initialBalance, withdrawalAmount; cout << "Enter initial account balance: Rs. "; cin >> initialBalance; BankAccount account(initialBalance); account.displayBalance(); cout << "Enter withdrawal amount: Rs. "; cin >> withdrawalAmount; try { account.withdraw(withdrawalAmount); } catch (const invalid_argument &e) { cout << "Transaction unsuccessful: " << e.what() << endl; } catch (const runtime_error &e) { cout << "Transaction unsuccessful: " << e.what() << endl; } return 0; } ``` The program begins by including the ``

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