public class Student

$\{$

private String firstName, lastName;

private Address homeAddress, schoolAddress;

$//-----------------------------------------------------------------$

$//$ Constructor: Sets up this student with the specified values.

$//-----------------------------------------------------------------$

public Student$($String first, String last, Address home,

Address school$)$

$\{$

firstName $=$ first;

lastName $=$ last;

homeAddress $=$ home;

schoolAddress $=$ school;

$\}$

$//-----------------------------------------------------------------$

$//$ Returns a string description of this Student object.

$//-----------------------------------------------------------------$

public String toString$()$

$\{$

String result;

result $=$ firstName $+""+$ lastName $+"$

$"$;

result $+=$ "Home Address:

$"+$ homeAddress $+"$

$"$;

result $+=$ "School Address:

$"+$ schoolAddress;

return result;

$\}$

$\}$

Modify the Student class presented in this chapter as follows. Each student object should also contain the scores for three tests. Provide a constructor that sets all instance values based on parameter values. Overload the constructor such that each test score is assumed to be initially zero. Provide a method called setTestScore that accepts two parameters: the test number $(1$ through $3)$ and the score. Also provide a method called getTestScore that accepts the test number and returns the appropriate score. Provide a method called average that computes and returns the average test score for this students. Modify the toString method such that the test scores and average are included in the description of the student. Modify the driver class main method to exercise the new Student methods.