Consider the declaration in Sum AllArr: int [] arr1 = new int[max+1]: a) How many entries does it create? b) Why do we have "max+1"? c) Can we just use "max" and have the program still work correctly? Before while loop (SumAllArr.java) we have "i = 1;" a) Why is it there? b) Can we use another variable instead? 3) Do-while loop is implemented using (++i