Java exam

Mcq 15-20

Q15:

Which of the following trees are binary search trees?

. all of them

Q16:

Which of the following trees are binary search trees?

. all of them

Q17:

. all of them

Q18:

It is forbidden to place both private and abstract in front of a method declaration.

. true

. false

Q19:

Consider the binary search tree below:

What is the post-order path of this binary search tree?

Remember this in the post-order walk: First, we go through the left subtree. Then we cross the right subtree. Finally, we visit the root.

Q20:

Consider the following two classes:

After executing the code, we will have the following display: