public class Student {
  // instance fields
  private String myName;
  private double myTotal;
  private int myNumTests;
  
  // Constructor
  public Student(String name) {
    // initialize instance fields (one kind of variables)
    myName = name;
    myTotal = 0;
    myNumTests = 0;
  }
  
  public String toString() {
     return myName + " has taken " +
       myNumTests + " quizzes with a total of " + myTotal;
  }
  
  public void addQuiz(double score) {
    myNumTests++; // equivalent to myNumTests = myNumTests + 1;
    myTotal += score;
    // equivalent to myTotal = myTotal + score;
  }
  
  public double getAverage() {
    double average = myTotal / myNumTests;
    return average;
  }
}