/**
   This program demonstrates the FinalExam3 class which
   implements the Relatable interface.
*/
import java.util.Arrays;

public class InterfaceDemo
{
   public static void main(String[] args)
   {
      // Exam #1 had 100 questions and the student
      // missed 20 questions.
      FinalExam3 exam1 = new FinalExam3(100, 20);

      // Exam #2 had 100 questions and the student
      // missed 30 questions.
      FinalExam3 exam2 = new FinalExam3(100, 30);

      // Display the exam scores.
      System.out.println("Exam 1: " + 
                         exam1.getScore());
      System.out.println("Exam 2: " + 
                         exam2.getScore());

      // Compare the exam scores.
      if (exam1.equals(exam2))
         System.out.println("The exam scores " +
                            "are equal.");

      if (exam1.isGreater(exam2))
         System.out.println("The Exam 1 score " +
                            "is the highest.");

      if (exam1.isLess(exam2))
         System.out.println("The Exam 1 score " +
                            "is the lowest.");
		FinalExam3[] exams = new FinalExam3[2];
		exams[0] = exam1;
		exams[1] = exam2;
		
		Arrays.sort(exams);
		for (FinalExam3 f : exams)
			System.out.println(f.getScore());
		
   }
}