The LightPanel class contains a 2-dimensional array of values using numbers to represent lights in a matrix. An example might be a digital message board comprised of individual lights that you might see at a school entrance or sports scoreboard. You will write two methods, one to determine if a column is in error and one to fix the error by traversing the array column by column. The LightPanel class contains the instance variable panel, which is a two-dimensional array containing integer values that represent the state of lights on a grid. The two-dimensional array may be of any size. Lights may be on, off, or in an error state. The instance variable onValue represents an integer value for the on state of a light. The instance variable offValue represents an integer value for the off state of a light. The onValue and offValue instance variables may be of any valid integer value. Any other integer value in the panel array represents an error state for a light. Here is the partially completed LightPanel class: public class LightPanel{ private int[][] panel; private int onValue; private int offValue; public LightPanel(int[][] p, int on, int off){ panel

What percentage of companies is projected to use social media to locate new employees in 2012

Select the correct answer. what does it indicate when a website displays https instead of http? a. the website is secure. b. there is no secure sockets layer. c. the secure sockets layer is hidden. d. the website is not secure.

File account. java (see previous exercise) contains a definition for a simple bank account class with methods to withdraw, deposit, get the balance and account number, and return a string representation. note that the constructor for this class creates a random account number. save this class to your directory and study it to see how it works. then write the following additional code: 1. suppose the bank wants to keep track of how many accounts exist. a. declare a private static integer variable numaccounts to hold this value. like all instance and static variables, it will be initialized (to 0, since it’s an int) automatically. b. add code to the constructor to increment this variable every time an account is created. c. add a static method getnumaccounts that returns the total number of accounts. think about why this method should be static - its information is not related to any particular account. d. file testaccounts1.java contains a simple program that creates the specified number of bank accounts then uses the getnumaccounts method to find how many accounts were created. save it to your directory, then use it to test your modified account class.