You can use the ____ modifier with methods when you don't want the method to be overridden.

A type of array in which different rows can have different number of columns is called a/an:

a. partially filled array b. ragged array c. initialized array d. none of the above

Answer the following statements true (T) or false (F)

1) A binary search tree is always a full tree. 2) Finding an element in a binary search tree always requires O(log 2 n) comparisons. 3) In a binary search tree, a new element is always added as a leaf. 4) In a balanced binary search tree, adding an element always requires approximately O(log 2 n) steps. 5) In a binary search tree, the elements in the right subtree of the root are always larger than the element stored at the root.