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?
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

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?  
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.

Quizplus · Accepted Answer

The Answer of 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?  
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.

Assume Two Threads Share a BankAccount Object with Balance of Zero