Exceptional Handling

GamerBhai02

Nov 11th, 2024

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Java 2.98 KB | Source Code | 0 0

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import java.util.InputMismatchException;
import java.util.Scanner;
// Custom exception for insufficient funds
class InsufficientFundsException extends Exception {
public InsufficientFundsException(String message) {
super(message);
}
}
// Class to represent a bank account
class BankAccount1 {
private String accountHolder;
private double balance;
// Constructor to initialize account holder's name and initial balance
public BankAccount1(String accountHolder) {
this.accountHolder = accountHolder;
this.balance = 0.0; // Initial balance set to zero
}
// Method to deposit money
public void deposit(double amount) {
if (amount <= 0) {
System.out.println("Deposit amount must be positive.");
return;
}
balance += amount;
System.out.println("Deposited: $" + amount);
}
// Method to withdraw money
public void withdraw(double amount) throws InsufficientFundsException {
if (amount <= 0) {
System.out.println("Withdrawal amount must be positive.");
return;
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}
if (amount > balance) {
throw new InsufficientFundsException("Insufficient funds for withdrawal.");
}
balance -= amount;
System.out.println("Withdrawn: $" + amount);
}
// Method to check balance
public double checkBalance() {
return balance;
}
// Method to get account holder's name
public String getAccountHolder() {
return accountHolder;
}
}
// Main class to manage the bank account transactions
public class BAM {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
// Get account holder's name and create the account
System.out.print("Enter account holder's name: ");
String name = scanner.nextLine();
BankAccount1 account = new BankAccount1(name);
int choice = -1;
do {
// Display menu
System.out.println("\n--- Bank Account Management ---");
System.out.println("1. Check Balance");
System.out.println("2. Deposit Money");
System.out.println("3. Withdraw Money");
System.out.println("4. Exit");
System.out.print("Enter your choice: ");
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try {
choice = scanner.nextInt(); // Get user's menu choice
switch (choice) {
case 1:
System.out.println("Current Balance: $" + account.checkBalance());
break;
case 2:
System.out.print("Enter amount to deposit: $");
double depositAmount = scanner.nextDouble();
account.deposit(depositAmount);
break;
case 3:
System.out.print("Enter amount to withdraw: $");
double withdrawAmount = scanner.nextDouble();
account.withdraw(withdrawAmount);
break;
case 4:
System.out.println("Exiting...");
break;
default:
System.out.println("Invalid choice. Please try again.");
}
} catch (InsufficientFundsException e) {
// Handle insufficient funds exception
System.out.println("Error: " + e.getMessage());
} catch (InputMismatchException e) {
// Handle invalid input (non-integer or non-double values)
System.out.println("Invalid input. Please enter a number.");
scanner.next(); // Clear the invalid input
}
} while (choice != 4);
scanner.close();
}
}

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