How do you write a java program to update the total amoutn in the bill at nth position with the given billno?

Answer 1

To update the total amount in a bill at the nth position with a given bill number in Java, you can use an array or a list to store the bills. First, iterate through the list to find the bill with the specified bill number. Once found, update the total amount at the nth position using the index. Here's a simple example:

class Bill {
    int billNo;
    double totalAmount;

    // Constructor, getters, and setters omitted for brevity
}

// Assuming bills is a List<Bill>
for (Bill bill : bills) {
    if (bill.getBillNo() == targetBillNo) {
        bill.setTotalAmount(newTotalAmount);
        break; // Exit loop once the bill is found and updated
    }
}

Make sure to handle cases where the bill number is not found or the nth position is out of bounds.