Java/Bank.java at main · GEHU-ORG/Java · GitHub

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importjava.util.Scanner;

publicclassBank {
// Data members
privateStringdepositorName;
privateStringdepositorAddress;
privateintaccountNumber;
privatedoublebalance;

// Static variable to generate unique account numbers
privatestaticintnextAccountNumber = 1001;

// Constructor
publicBank(Stringname, Stringaddress, doubleinitialBalance) {
this.depositorName = name;
this.depositorAddress = address;
this.accountNumber = nextAccountNumber++;
this.balance = initialBalance;
 }

// Method to display depositor information and balance
publicvoiddisplayInfo() {
System.out.println("\nDepositor Information:");
System.out.println("Name: " + depositorName);
System.out.println("Address: " + depositorAddress);
System.out.println("Account Number: " + accountNumber);
System.out.println("Balance: $" + balance);
 }

// Method to deposit amount
publicvoiddeposit(doubleamount) {
if (amount > 0) {
balance += amount;
System.out.println("$" + amount + " deposited successfully.");
 } else {
System.out.println("Invalid amount. Deposit amount must be positive.");
 }
 }

// Method to withdraw amount
publicvoidwithdraw(doubleamount) {
if (amount > 0) {
if (amount <= balance) {
balance -= amount;
System.out.println("$" + amount + " withdrawn successfully.");
 } else {
System.out.println("Insufficient balance.");
 }
 } else {
System.out.println("Invalid amount. Withdrawal amount must be positive.");
 }
 }

// Method to change address
publicvoidchangeAddress(StringnewAddress) {
this.depositorAddress = newAddress;
System.out.println("Address updated successfully.");
 }

// Getter for account number
publicintgetAccountNumber() {
returnaccountNumber;
 }

publicstaticvoidmain(String[] args) {
Scannerscanner = newScanner(System.in);

System.out.println("Bank Management System");
System.out.println("---------------------");

// Get number of depositors
System.out.print("Enter the number of depositors: ");
intnumDepositors = scanner.nextInt();
scanner.nextLine(); // Consume newline

// Create array to store Bank objects
Bank[] accounts = newBank[numDepositors];

// Input information for each depositor
for (inti = 0; i < numDepositors; i++) {
System.out.println("\nEnter details for depositor " + (i + 1) + ":");

System.out.print("Name: ");
Stringname = scanner.nextLine();

System.out.print("Address: ");
Stringaddress = scanner.nextLine();

System.out.print("Initial Balance: $");
doublebalance = scanner.nextDouble();
scanner.nextLine(); // Consume newline

accounts[i] = newBank(name, address, balance);
System.out.println("Account created successfully with Account Number: " + accounts[i].getAccountNumber());
 }

// Menu-driven operations
intchoice = 0;
do {
System.out.println("\nOperations Menu:");
System.out.println("1. Display depositor information");
System.out.println("2. Deposit amount");
System.out.println("3. Withdraw amount");
System.out.println("4. Change address");
System.out.println("5. Exit");

System.out.print("Enter your choice (1-5): ");
choice = scanner.nextInt();

if (choice >= 1 && choice <= 4) {
System.out.print("Enter Account Number: ");
intaccNum = scanner.nextInt();
scanner.nextLine(); // Consume newline

// Find the account
Bankaccount = null;
for (Bankacc : accounts) {
if (acc.getAccountNumber() == accNum) {
account = acc;
break;
 }
 }

if (account == null) {
System.out.println("Account not found.");
continue;
 }

switch (choice) {
case1:
account.displayInfo();
break;
case2:
System.out.print("Enter amount to deposit: $");
doubledepositAmount = scanner.nextDouble();
account.deposit(depositAmount);
account.displayInfo();
break;
case3:
System.out.print("Enter amount to withdraw: $");
doublewithdrawAmount = scanner.nextDouble();
account.withdraw(withdrawAmount);
account.displayInfo();
break;
case4:
System.out.print("Enter new address: ");
StringnewAddress = scanner.nextLine();
account.changeAddress(newAddress);
account.displayInfo();
break;
 }
 }
 } while (choice != 5);

System.out.println("Thank you for using the Bank Management System.");
scanner.close();
 }
}