A family preservation program director helps design a study that evaluates the effectiveness of her program to keep children living with their abusive parents by providing the families with daily home visits by social workers. She expects the evaluation to show a dramatic reduction in reported child abuse incidents. Instead, the results show an increase in reported child abuse incidents. The director then concludes that the program was undoubtedly effective, reasoning that there really could not possibly have been an increase in actual abuse due to her program, just an increase in reportage of abuse due to closer monitoring in the daily home visits. The director is committing the error of Group of answer choices illogical reasoning ex post facto hypothesizing selective observation. premature closure of inquiry.

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.