You might at first think that you could just cast the gallonspaintneeded variable from a double to an integer type. however, that would merely cut off the decimal portion of the value, resulting in an underestimate of the number of cans needed. you might also consider rounding the number, but that would not work for the sample output provided above since normal rounding rules would suggest 2.0 cans, an underestimate. so, the computational problem you are faced with is to calculate the number of cans and round up to the nearest whole number. in order to determine if that method for rounding up exists as part of one of java’s core classes, we need to consult the documentation. there might be a single method that we can use or we might have to use more than one method.

Jason, samantha, ravi, sheila, and ankit are preparing for an upcoming marathon. each day of the week, they run a certain number of miles and write them into a notebook. at the end of the week, they would like to know the number of miles run each day, the total miles for the week, and average miles run each day. write a program to them analyze their data. your program must contain parallel arrays: an array to store the names of the runners and a two-dimensional array of five rows and seven columns to store the number of miles run by each runner each day. furthermore, your program must contain at least the following functions: a function to read and store the runners’ names and the numbers of miles run each day; a function to find the total miles run by each runner and the average number of miles run each day; and a function to output the results. (you may assume that the input data is stored in a file and each line of data is in the following form: runnername milesday1 milesday2 milesday3 milesday4 milesday5 milesday6 milesday7.)