This class keeps track of the average score for a single student. */ class ScoreTracker { // The name of the student. private String studentName; private int numAssignments = 0; private int pointsPossible = 0; private int pointsEarned = 0;

/* * The constructor accepts and stores the name of the student. */ // *** Implement the constructor *** public ScoreTracker(String name) { // This should be a single assignment statement. The constructor // just stores the parameter (name) into the object variable // studentName. Most constructors do something this simple. }

/* * Add the result of a new assignment to the accumulation */ // *** Implement this method *** public void addResult(int earned, int possible) { // This method should update the object variables numAssignments, // pointsPossible and pointsEarned to include an additional // assignment. }

/* * Return the number of assignments completed. */ // *** Implement this method *** public int getNumberOfAssignments() { // The return statement is here only to make this code compile. // It is not correct. Instead of zero, return the correct value. return 0; } /* * Return the current average as a percentage of possible points earned. */ // *** Implement this method *** public double getAverage() { // This computes the percentage of possible points that have been // earned, and returns it. Pay attention to the types involved. // The existing return is present only to satisfy the compiler. // Replace it with a correct one. return 0; }

/* * Return a string for printing purposes. It looks like this: * Name: pct over nn assignments * With the student's actual name, earned percentage, and number of * project substituted for Name, pct and nn, respecitively. */ // *** Implement this method *** public String toString() { // Replace the return statement with one that builds the string // described above. Concatenate the students name, percentage, // and assignment count along with some string constants to build // the specified return string. return ""; } }