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?
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.

Question

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?  
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.

Quizplus · Accepted Answer

The Answer of 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?  
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.

Assume Two Threads Share a BankAccount Object with Balance of Zero