public class ClassParameterDemo
{
    public static void main(String[] args)
    {
        ToyClass anObject = new ToyClass("Mr. Cellophane", 0);
        System.out.println(anObject);
        System.out.println(
                 "Now we call changer with anObject as argument.");
        ToyClass.changer(anObject);
        System.out.println(anObject);
     }
}