35 Java Project Ideas for Final Year Students (With Source Code) | 2026

📅 November 13, 2023 | 👤 Ranjan Avinash | 🔖 Java, Final Year Project Ideas

				
					import java.io.*;
import java.util.*;

class Account implements Serializable {
    private int accountNumber;
    private String holderName;
    private double balance;
    
    public Account(int accNo, String name, double initialDeposit) {
        this.accountNumber = accNo;
        this.holderName = name;
        this.balance = initialDeposit;
    }
    
    public int getAccountNumber() { return accountNumber; }
    public String getHolderName() { return holderName; }
    public double getBalance() { return balance; }
    
    public boolean deposit(double amount) {
        if (amount <= 0) {
            System.out.println("Amount must be positive.");
            return false;
        }
        balance += amount;
        System.out.printf("Deposited: $%.2f. New balance: $%.2f%n", amount, balance);
        return true;
    }
    
    public boolean withdraw(double amount) {
        if (amount <= 0) {
            System.out.println("Amount must be positive.");
            return false;
        }
        if (amount > balance) {
            System.out.printf("Insufficient funds. Balance: $%.2f%n", balance);
            return false;
        }
        balance -= amount;
        System.out.printf("Withdrawn: $%.2f. New balance: $%.2f%n", amount, balance);
        return true;
    }
    
    public void display() {
        System.out.printf("Account #%d | %s | Balance: $%.2f%n", 
                          accountNumber, holderName, balance);
    }
}

class Bank {
    private List<Account> accounts = new ArrayList<>();
    private int nextAccountNumber = 1001;
    private String dataFile;
    
    public Bank(String filename) {
        this.dataFile = filename;
        loadAccounts();
    }
    
    public void createAccount(Scanner scanner) {
        System.out.print("Enter name: ");
        scanner.nextLine(); // clear buffer
        String name = scanner.nextLine();
        
        System.out.print("Enter initial deposit: $");
        double deposit = scanner.nextDouble();
        
        if (deposit < 0) {
            System.out.println("Deposit cannot be negative.");
            return;
        }
        
        Account acc = new Account(nextAccountNumber, name, deposit);
        accounts.add(acc);
        System.out.println("Account created! Number: " + nextAccountNumber);
        nextAccountNumber++;
        saveAccounts();
    }
    
    public Account findAccount(int accNo) {
        for (Account acc : accounts) {
            if (acc.getAccountNumber() == accNo) return acc;
        }
        return null;
    }
    
    public void deposit(Scanner scanner) {
        System.out.print("Enter account number: ");
        int accNo = scanner.nextInt();
        Account acc = findAccount(accNo);
        
        if (acc == null) {
            System.out.println("Account not found.");
            return;
        }
        
        System.out.print("Enter amount: $");
        double amount = scanner.nextDouble();
        if (acc.deposit(amount)) saveAccounts();
    }
    
    public void withdraw(Scanner scanner) {
        System.out.print("Enter account number: ");
        int accNo = scanner.nextInt();
        Account acc = findAccount(accNo);
        
        if (acc == null) {
            System.out.println("Account not found.");
            return;
        }
        
        System.out.print("Enter amount: $");
        double amount = scanner.nextDouble();
        if (acc.withdraw(amount)) saveAccounts();
    }
    
    public void checkBalance(Scanner scanner) {
        System.out.print("Enter account number: ");
        int accNo = scanner.nextInt();
        Account acc = findAccount(accNo);
        
        if (acc == null) {
            System.out.println("Account not found.");
            return;
        }
        acc.display();
    }
    
    public void listAll() {
        if (accounts.isEmpty()) {
            System.out.println("No accounts found.");
            return;
        }
        System.out.println("\n--- All Accounts ---");
        for (Account acc : accounts) acc.display();
    }
    
    @SuppressWarnings("unchecked")
    private void loadAccounts() {
        try (ObjectInputStream ois = new ObjectInputStream(new FileInputStream(dataFile))) {
            nextAccountNumber = ois.readInt();
            accounts = (List<Account>) ois.readObject();
        } catch (FileNotFoundException e) {
            // First run, no file yet
        } catch (Exception e) {
            System.out.println("Error loading data: " + e.getMessage());
        }
    }
    
    private void saveAccounts() {
        try (ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(dataFile))) {
            oos.writeInt(nextAccountNumber);
            oos.writeObject(accounts);
        } catch (Exception e) {
            System.out.println("Error saving data: " + e.getMessage());
        }
    }
}

public class Main {
    public static void main(String[] args) {
        Bank bank = new Bank("bank_data.dat");
        Scanner scanner = new Scanner(System.in);
        
        while (true) {
            System.out.println("\n===== BANKING SYSTEM =====");
            System.out.println("1. Create Account");
            System.out.println("2. Deposit");
            System.out.println("3. Withdraw");
            System.out.println("4. Check Balance");
            System.out.println("5. List All Accounts");
            System.out.println("6. Exit");
            System.out.print("Choice: ");
            
            int choice = scanner.nextInt();
            
            switch (choice) {
                case 1: bank.createAccount(scanner); break;
                case 2: bank.deposit(scanner); break;
                case 3: bank.withdraw(scanner); break;
                case 4: bank.checkBalance(scanner); break;
                case 5: bank.listAll(); break;
                case 6: 
                    System.out.println("Goodbye!");
                    scanner.close();
                    return;
                default: System.out.println("Invalid choice.");
            }
        }
    }
}