3. (1.5 points) Write a program that reads a data file containing rational numbers, one per line, stores the numbers in an ArrayList, removes any duplicates, and then outputs the sum. Note: use BigRational from java.math package and follow the following class outline: class Rational Number Tester__ public static void main (String [] args) throws FileNat ExundException private static BigRational sum(Arrannhist list); private static void printList/Arrannhist list); private static bazlean listContains-Armanist list, RigRational item); } 3. (1.5 points) Write a program that reads a data file containing rational numbers, one per line, stores the numbers in an ArrayList, removes any duplicates, and then outputs the sum. Note: use BigRational from java.math package and follow the following class outline: class Rational Number Tester__ public static void main (String [] args) throws FileNat ExundException private static BigRational sum(Arrannhist list); private static void printList/Arrannhist list); private static bazlean listContains-Armanist list, RigRational item); }