Assume two threads share a BankAccount object with balance of zero (0), and that the BankAccount class provides synchronized deposit and withdraw methods. Thread one deposits $10 ten times and, concurrently, thread two withdraws $10 ten times. Which statement regarding the balance after all thread calls is definitely true? public synchronized void deposit(int dollars)
{
Int newBalance = balance + dollars;
System.out.println("depositing");
Balance = newBalance;
}
Public synchronized void withdraw(int dollars)
{
Int newBalance = balance - dollars;
System.out.println("withdrawing");
Balance = newBalance;
}
A) The balance could be zero or positive.
B) The balance is zero.
C) The balance could be zero or negative.
D) The balance is positive.

Question

Quizplus · Accepted Answer

Since both deposit and withdraw methods are synchronized, they ensure that only one thread can modify the balance at a time, preventing race conditions. Therefore, after all operations, the balance will be zero.

Assume Two Threads Share a BankAccount Object with Balance of Zero