In Java

4. A clerk is adding up a customer's total to determine if they qualify for a discount. Use a do while loop to prompt the user for the cost of each item and determine the total amount spent. Use -1 as a sentinel. If the customer spends at least $75, apply a 15% discount to their total. Output whether or not they received a discount as well as their final total. Be sure to format your output to 2 decimal places. */ 5. Write a code snippet that uses nested for loops to print 4 row of 6 randomly generated integers between 0 and 9 (inclusive). Output the values with even spacing. */