Write code using a nested loop that initializes each character of a 2D array to an underscore character '_', given the initialization code below. int W = 4; int H = 3; char [][] board = new char[W][H]; What kind of exception, if any, does Integer.parseInt(String s, int radix) throw and What kind of exception, if any, does Math.sqrt(double a) throw? If one of your function calls a method that throws an IOException, and you want to handle it, what do you have to do?

QUESTION 5

If one of your function calls a method that throws an IOException, but you don't want to handle it, what do you have to do