The programs listed at the top of the left column when clicking the Start button are permanently added to the Start menu

Which of the following is true about the heapsort?

a. the heapsort does not require a second array b. the heapsort is more efficient than the mergesort in the worst case c. the heapsort is more efficient than the mergesort in the average case d. the heapsort is better than the quicksort in the average case

Which of the following statements is false?

a. Scanner method next reads characters until any white-space character is encountered, then returns the characters as a String. b. To call a method of an object, follow the object name with a comma, the method name and a set of parentheses containing the method’s arguments. c. A class instance creation expression begins with keyword new and creates a new object. d. A constructor is similar to a method but is called implicitly by the new operator to initialize an object’s instance variables at the time the object is created.