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public abstract class Student {

private String firstName;
private String lastName;
private int studentID;
private double gPA;
private String status;
private String...

I fear you may need a default constructor

public Student()
{

}

too if you're extending Student.

First off all, you don't have

public Student()
{

}

Also, I might add, that abstract classes cannot be initialized, at least not to themselves.

You cannot have