Assume Two Threads Share a BankAccount Object with Balance of Zero

question 22

Multiple Choice

Assume two threads share a BankAccount object with balance of zero (0) , and that the BankAccount class provides deposit and withdraw methods and has a ReentrantLock named myLock, as shown below. 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 void deposit(int dollars)
{
MyLock.lock()
Int newBalance = balance + dollars;
System.out.println("depositing") ;
Balance = newBalance;
MyLock.unlock()
}
Public void withdraw(int dollars)
{
MyLock.lock()
Int newBalance = balance - dollars;
System.out.println("withdrawing") ;
Balance = newBalance;
MyLock.unlock()
}

• 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.

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Definitions:

Brain Structure

Refers to the physical form and organization of different parts of the brain, impacting functions and behaviors.

Left Side

Refers to the left part or aspect of something, often used in the context of locations, directions, or lateralization in the brain.

Limbic System

A complex system of nerves and networks in the brain, involving several areas near the edge of the cortex concerned with instinct and mood. It controls the basic emotions (fear, pleasure, anger) and drives (hunger, sex, dominance, care of offspring).

Amygdala

A small, almond-shaped cluster of nuclei located deep within the temporal lobes of the brain, involved in processing emotions such as fear and pleasure.