Ex 2: Game: Write a Java program to play the guessing number game. The program generates a number, the user guess the number, then the program will display one of the following: correct, smaller, greater. The program keeps doing this until the user guesses the program correctly. Modify the program to change the roles of the user and the progranm Ex 3: Input file: customer's account number, account balance at beginning of month, transaction type (withdrawal, deposit, interest), transaction amount. Output: account number, beginning balance, ending balance, total interest paid, total amount deposited, number of deposits, total amount withdrawn, number of withdrawals Ex 4: Fibonacci formula for any Fibonacci sequence: an-an-1 + an-2 Input: first two Fibonacci numbers in sequence, position in sequence of desired Fibonacci number (n) Output: nth Fibonacci number