Added Java lab programs

BankProject/BankDemo.java

@@ -0,0 +1,39 @@
+import accounts.Account;
+import java.util.Scanner;
+import services.Interest;
+
+public class BankDemo {
+
+    public static void main(String[] args) {
+        Scanner sc = new Scanner(System.in);
+
+        System.out.print("Enter Account Number: ");
+        int accNo = sc.nextInt();
+        sc.nextLine();
+
+        System.out.print("Enter Customer Name: ");
+        String name = sc.nextLine();
+
+        System.out.print("Enter Initial Balance: ");
+        double balance = sc.nextDouble();
+
+        Account acc = new Account(accNo, name, balance);
+
+        System.out.print("Enter amount to deposit: ");
+        double dep = sc.nextDouble();
+        acc.deposit(dep);
+
+        System.out.print("Enter amount to withdraw: ");
+        double wd = sc.nextDouble();
+        acc.withdraw(wd);
+
+        Interest interest = new Interest();
+        double updatedBalance = interest.applyInterest(acc.getBalance());
+
+        System.out.println("\n--- Account Details After Interest ---");
+        acc.displayAccountDetails();
+        System.out.println("Balance after interest: " + updatedBalance);
+
+        sc.close();
+    }
+}