PriorityQueue method __________ inserts an element at the appropriate location in the queue.

Derive a class BuyNItemsGetOneFree from DiscountPolicy, as described in Exercise 10. The class should have a constructor that has a single parameter n. In addition, the class should define the method computeDiscount so that every nth item is free. For example, the following table gives the discount for the purchase of various counts of an item that costs $10, when n is 3:

What will be an ideal response?

Which of the following statements is true?

a. Stream method filter receives a Predicate and results in a stream of objects that match the Predicate. b. Predicate method test returns a boolean indicating whether the argument satisfies a condition. c. Interface Predicate also has methods and, negate and or. d. Each of these statements is true.