Exam 9: Advanced Array Concepts

What import statements must be used before you can use an ArrayList class?

import java.util.*; public class myArray {     public static void main(String[] args)     {       int myVals = new int[4];       -----Code here-----       display("My values are: ", myVals);     }     public static void display(String message, int array[])     {        int arraySize = array.length;        System.out.print(message);        for(int x = 0; x           System.out.print(array[x] + " ");     } } Using the above code, complete the indicated section with a fill method() to fill each array element with a value of 2. What will be displayed after the display() method is executed?

An array that you can picture as a column of values, and whose elements you can access using one subscript, is a ____ array.

When using the Arrays.binarySearch() method, it is not necessary for the list to be in order because the binarySearch() method will sort the items when called.

When you pass a two-dimensional array to a method, you pass the array name just as you do with a one-dimensional array.

Using the ArrayList add() method, write the statement to insert "July" in the first position of the months ArrayList . Describe what would happen if the position number is invalid for the ArrayList .