public class TestStudent
{
	public static void main(String[] args)
	{
		Student s1 = new Student();	//instantiate using default constructor
		Student s2 = new Student("Roberta", "Thomas");
		Student s3; //not yet instantiated - no problem (it's just like declaring 'int x;' )
		s2.setHwTotal(268);
		s2.setFinalExamScore(92);
		s2.setStudentId(33422933);

		s3 = new Student(s2); //instantiate (used copy constructor)

		//output s1 using toString
		System.out.println("Outputting the \'s1\' object's state using toString");
		System.out.println(s1);

		//Test toString
		//Note that they have the same state
		System.out.println("Object \'s2\':");
		System.out.println(s2);

		System.out.println("Object \'s3\':");
		System.out.println(s3);

		//Even though s2 and s3 have identical state, they are still
		// DIFFERENT objects, so this will be false.
		System.out.println("Comparing the references using == :");
		if ( s3 == s2)
			System.out.println("Same");
		else
			System.out.println("Different");

		System.out.println();

		//Compare the STATE of the objects using 'equals' method
		//In this case, because the state of the two objects is identical,
		//the equals method returns true
		System.out.println("Comparing the state using equals method:");
		if (  s3.equals(s2)  )
			System.out.println("Same");
		else
			System.out.println("Different");

		System.out.println();
	} //end main
} //end class TestStudent