diff --git a/OOP/Java/Lab/Practice_question.java b/OOP/Java/Lab/Practice_question.java
deleted file mode 100644
index 4bca7d4..0000000
--- a/OOP/Java/Lab/Practice_question.java
+++ /dev/null
@@ -1,126 +0,0 @@
-// Online Java Compiler
-/*interface product
-{
-    void buy(int num);
-}
-class genproduct implements product
-{
-    int quan;
-    genproduct(int n)
-    {
-        quan=n;
-    }
-    public synchronized void buy(int num)
-    {
-        if(quan<num)
-        {
-            System.out.println("Erretysuor");
-        }
-        else{
-            System.out.println(num+" in start "+quan);
-            quan=quan-num;
-            System.out.println("succesfull "+quan);
-        }
-    }
-}
-
-class inventory<T extends product> extends Thread
-{
-    T obj;
-    int num;
-    inventory(T obj,int num)
-    {
-        this.obj=obj;
-        this.num=num;
-    }
-    public void run()
-    {
-        obj.buy(num);
-    }
-}
-class Mainclass
-{
-    public static void main(String[] args) {
-        genproduct buyer1 =new genproduct(15);
-        inventory<genproduct> t1=new inventory(buyer1,2);
-        inventory<genproduct> t2=new inventory(buyer1,5);
-       // obj.start();
-       t1.start();
-       t2.start();
-       
-       
-    }
-}*/
-class BankAccount {
-    private int balance;
-    private int accountNumber;
-
-    public BankAccount(int accountNumber, int initialBalance) {
-        this.accountNumber = accountNumber;
-        this.balance = initialBalance;
-    }
-
-    public synchronized void deposit(int amount) {
-        balance += amount;
-        System.out.println("Deposited: " + amount);
-        System.out.println("Current Balance after Deposit: " + balance);
-    }
-
-    public synchronized void withdraw(int amount) {
-        if (balance >= amount) {
-            balance -= amount;
-            System.out.println("Withdrawn: " + amount);
-            System.out.println("Current Balance after Withdrawal: " + balance);
-        } else {
-            System.out.println("Insufficient funds for withdrawal.");
-        }
-    }
-}
-
-class TransactionThread extends Thread {
-    private BankAccount account;
-    private boolean isDeposit;
-    private int amount;
-
-    public TransactionThread(BankAccount account, boolean isDeposit, int amount) {
-        this.account = account;
-        this.isDeposit = isDeposit;
-        this.amount = amount;
-    }
-
-    public void run() {
-        if (isDeposit) {
-            account.deposit(amount);
-        } else {
-            account.withdraw(amount);
-        }
-    }
-}
-
-class Practice_question{
-    public static void main(String[] args) {
-        BankAccount account = new BankAccount(12345, 1000);
-
-        // Create multiple threads for deposits and withdrawals
-        TransactionThread depositThread1 = new TransactionThread(account, true, 500);
-        TransactionThread withdrawThread1 = new TransactionThread(account, false, 200);
-        TransactionThread depositThread2 = new TransactionThread(account, true, 100);
-        TransactionThread withdrawThread2 = new TransactionThread(account, false, 300);
-
-        // Start the threads
-        depositThread1.start();
-        withdrawThread1.start();
-        depositThread2.start();
-        withdrawThread2.start();
-
-        // Wait for all threads to finish
-        try {
-            depositThread1.join();
-            withdrawThread1.join();
-            depositThread2.join();
-            withdrawThread2.join();
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
-    }
-}