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class BankAccount {
  private static int balanceAmount;  // Total amount in bank account
	 
  private static final Object lock;

  private BankAccount(int balance) {
    this.balanceAmount = balance;
    this.lock = new Object();
  }

  // Deposits the amount from this object instance to BankAccount instance argument ba 
  private void depositAllAmount(BankAccount ba) {
    synchronized (lock) {
      ba.balanceAmount += this.balanceAmount;
      this.balanceAmount = 0; // withdraw all amount from this instance
      ba.displayAllAmount();  // Display the new balanceAmount in ba (may cause deadlock)
    } 
  }
  
  private void displayAllAmount() {
    synchronized (lock) {
      System.out.println(balanceAmount);
    }
  }

  public static void initiateTransfer(final BankAccount first, final BankAccount second) {
    Thread t = new Thread(new Runnable() {
      public void run() {
        first.depositAllAmount(second);
      }
    });
    t.start();
  }
}