Assume Two Threads Share a BankAccount Object with Balance of Zero

question 74

Multiple Choice

Assume two threads share a BankAccount object with balance of zero (0) , and that the BankAccount class provides deposit and withdraw methods as shown below. Thread one deposits $10 ten times and, concurrently, thread two withdraws $10 ten times. If the balance after all thread calls is 0, which statement is definitely true? public void deposit(int dollars)
{
Int newBalance = balance + dollars;
System.out.println("depositing") ;
Balance = newBalance;
}
Public void withdraw(int dollars)
{
Int newBalance = balance - dollars;
System.out.println("withdrawing") ;
Balance = newBalance;
}

• A) The calls were interleaved: thread one, thread two, thread one, thread two, …
• B) The first call was to the deposit method.
• C) The last call was to the withdraw method.
• D) Each individual call to the deposit and withdraw methods ran to completion.

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Definitions:

Parasympathetic Division

A branch of the autonomic nervous system responsible for 'rest and digest' activities, slowing down the body after stress or exertion.

Intense Arousal

A heightened state of physiological activity and alertness, often associated with emotions such as excitement, anxiety, or fear.

Sympathetic Nervous System

A part of the autonomic nervous system that activates what is often termed the fight or flight response, preparing the body to react to stressful situations.

Increases Respiration

A physiological condition where the rate and depth of breathing rise, often in response to exercise, stress, or another stimuli.