Cryptec Quiz Round 2

Which of the following sequences of code could be used in the destructor ~List() to correctly delete all of the nodes in the list? (Which ones are legal, even if the style is atrocious?)

I. for (ListNode *n = head; head != NULL; head = n) { n = head->next; delete head; }

II. for (ListNode *n = head; n != NULL; n->next) { delete n; }

III. ListNode* n; while (head != NULL) { n = head->next; delete head; head = n; }

• I and II only

• II and III only

• I and III only

• III only

.

• 2

• 3

• 5

• Compilation error

.

• Compilation error

• Runtime error

• 1

• Exception

Which of the following statements about Java Threads is correct?

• Java threads guarantee that multiple threads will always execute in parallel, regardless of the underlying hardware.

• Java threads are always preemptive, meaning that a running thread can never be interrupted by another thread.

• Java threads always execute in the order in which they were created.

• The "yield" method in Java threads guarantees that the current thread will always yield execution to another thread.

.

• Employee joe

  joe.id = 35

• Employee joe

  joe.aflcio = 35

• Employee joe

  aflcio = 35

• Employee joe

  joe.aflcio.id = 35

Which one of the following is the overflow condition if a circular queue is implemented using array having size MAX?

• rear= MAX-1

• rear=MAX

• front=(rear+1) mod max

• None of the them

What will be the output of the following Python code?

list1 = [1, 3]

list2 = list1

list1[0] = 4

print(list2)

• [1, 4]

• [1, 3, 4]

• [4, 3]

• [1, 3]

Predict the output

• Child

  Child

  Child

• Parent

  Child

  Child

• Parent

  Child

  Parent

• Parent

  Parent

  Child

The correct order of the declarations in a Java program is,

• Package declaration, import statement, class declaration

• Import statement, package declaration, class declaration

• Import statement, class declaration, package declaration

• Class declaration, import statement, package declaration

Predict the output

• DCon DDest

• Dcon DDest BCon BDest

• BCon Dcon DDest BDest

• BCon DCon BDes DDest