Write a program that reads in a set of coin descriptions from a file. The input file has the format
. . .
Add a method
void read(Scanner in) throws FileNotFoundException
to the Coin class. Throw an exception if the current line is not properly formatted. Then implement a method
static ArrayList<Coin> readFile(String filename)
In the main method, call readFile. If an exception is thrown, give the user a chance to select another file. If you read all coins successfully, print the total value.