CIS 265: Data Structures and Algorithms - IT Assignment Help

Assignment Task:

Task:

General Description
In this assignment, you will create a Java program to read undergraduate and graduate students from an input file, sort them, and write them to an output file.

This assignment is a follow up of assignment 5. Like assignment 5, your program will read from an input file and write to an output file. The input file name and the output file name are passed in as the first and second arguments at command line, respectively. Unlike assignment 5, the Student objects are sorted before they are written to the output file.

• The program must implement a main class, three student classes (Student, UndergradStudent, GradStudent),
and a Comparator class called StudentIDComparator.
• The StudentIDComparator class must implement the java.util.Comparator interface, and override the compare() method. Since the Comparator interface is a generic interface, you must specify Student as the type parameter when defining the StudentIDComparator class, i.e., public class StudentIDComparator implements Comparator<Student> {
• The signature of the compare method should be public int compare(Student s1, Student s2). The compare() method returns a negative, 0, or positive integer if s1 is less than, equals, or is greater than s2, respectively.
• To sort the ArrayList, you need to create a StudentIDComparator object and use it in the Collections’ sort method:
StudentIDComparator idSorter = new StudentIDComparator();
Collections.sort(students, idSorter); //students is an arrayList of Students

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