public class Student extends Person{
	private double gpa;
	
	public Student(String name, int age, double gpa) {
		super(name, age); // calls the constructor of Person that takes 
		                                // a String and an int
		// The super call MUST always be the first line in the constructor
		this.gpa = gpa;
	}
	
	// override the speak method from the Person class
	public void speak() {
		super.speak(); // calls the speak method in Person
		// doesn't need to be on the first line (different from super() in the
		// the constructor)
		System.out.println("My gpa is " + gpa + ".");
	}
}