Suppose there is a class roster. roster has one variable, roster, which is a list of tuples containing the names of students and their number grades--for example, [('richard', 90), ('bella', 67), ('christine', 85), ('francine', 97)]. roster has a function findvaledictorian that returns the name of the student with the highest grade. find the valedictorian of the roster object englishclass and store it in the variable valedictorian.

What provides an array of buttons for quick access to commonly used commands and tools

Select the correct answer from each drop-down menu. which types of computer networks are bigger as well as smaller than a man? a man is a network of computers that covers an area bigger than a , but smaller than a .

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.