artPractice-class

class8.dart

class BankAccount {
  String accountNumber;
  String ownerName;
  double balance;

  BankAccount(this.accountNumber, this.ownerName, this.balance);

  void deposit(double amount) {
    balance += amount;
  }

  bool withdraw(double amount) {
    if (balance >= amount) {
      balance -= amount;
      return true;
    } else {
      return false;
    }
  }

  double getBalance() {
    return balance;
  }

  void displayAccountInfo() {
    print('계좌번호: $accountNumber');
    print('예금주: $ownerName');
    print('잔액: $balance');
  }
}

void main() {
  var account = BankAccount('123-45-6789', '김희성', 1000.0);

  account.deposit(500.0);
  account.displayAccountInfo();

  bool success = account.withdraw(300.0);
  if (success) {
    print('인출성공');
  } else {
    print('금액부족');
  }

  account.displayAccountInfo();
}