Author: Anonymous

The method below implements the exponentiation operation recursively by taking advantage of the fact that, if the exponent n is even, then xn = (x n/2)2. Select the expression that should be used to complete the method so that it computes the result correctly. public static double power(double base, int exponent) { if (exponent % 2 != 0) // if exponent is odd { return base * power(base, exponent – 1); } else if (exponent > 0) { double temp = ________________________ ; return temp * temp; } return base; }

Consider the following code snippet: myImage.add(new Rectangle(10,10,10,10)); This code is an example of using  ____.

In Java, if you forget to call a superclass constructor explicitly in the constructor of a subclass, what will happen?

A class that implements an interface must provide an implementation for all ____ methods.

Consider the following code snippet: Scanner in = new Scanner(. . .); in.useDelimiter(“[^0-9A-Za-z]+”); What characters will be ignored and not read in using this code?

Consider the following code snippet: Scanner in = new Scanner(. . .); in.useDelimiter(“[^A-Za-z]+”); What characters will be ignored and not read in when using this code?

Consider the following code snippet: Scanner in = new Scanner(. . .); in.useDelimiter(“[^0-9A-Za-z]+”); What characters will be ignored and not read in using this code?

Why does the best recursive method usually run slightly slower than its iterative counterpart?

Consider the following code snippet: public interface Sizable { int LARGE_CHANGE = 100; int SMALL_CHANGE = 20; void changeSize(); } Which of the following statements is true?

Complete the code shown to define the Comparator interface for comparing Auto objects. ___________________________ { int compare(Auto a, Auto b); }