Program your own file lab10.cpp in which your main() function will test Merge Sort functions. The main () function,
declares a vector which can store a collection of integers.
read values from the file sort. txt (which can be downloaded with this lab material) to the vector.
You may use the following code to read the data from a file to a vector, #include ifstream input("sort. txt"); int number; while (input >> number) v. push_back(number); input. close(); 1 }
call merge sort functions to sort the elements in the vector.
Print the sorted items to show that your program can work correctly

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.