1  public class Vehicle

  2  {

  3     private int numberOfTires;

  4  

  5     public int getNumberOfTires() 

  6     {

  7        return numberOfTires; 

  8     }

  9  

 10     public void setNumberOfTires(int newValue) 

 11     { 

 12        numberOfTires = newValue;

 13     }

 14  

 15     public String toString()

 16     {

 17        return getClass().getName() + "[numberOfTires=" + numberOfTires + "]";

 18        // This is a good way of implementing toString in a superclass--see Special Topic 9.6

 19     }

 20  }