public class Start {
       
    private static void path(Person p1, Person p2) {
        CoauthorPath cp = new CoauthorPath(p1,p2);
        Person path[] = cp.getPath();
        int i;
        System.out.println("# of Person objects = " + Person.numberOfPersons());
        if (path == null) {
            System.out.println("<"+p1+","+p2+"> not connected");
            return;
        }
        
        for (i=0; i<path.length; i++) {
            System.out.println(i + ": " + path[i] + " " + 
                    path[i].getNumberOfPublications() + " " +
                    (path[i].getPersonRecord()==null?" ":"*"));
        }
        System.out.println();
    }
    
    
    public static void main(String[] args) {
        Person p1, p2;
        p1 = Person.create("Michael Ley", "l/Ley:Michael");
        p2 = Person.create("Peter Sturm", "s/Sturm:Peter");
        path(p1,p2);
        p2 = Person.create("Bernd Walter", "w/Walter:Bernd");
        path(p1,p2);
        p2 = Person.create("Alan T. Murray", "m/Murray:Alan_T=");
        path(p1,p2);
        p2 = Person.create("B. Vogel", "v/Vogel:B=");
        path(p1,p2);
        p2 = Person.create("Alan M. Turing", "t/Turing:Alan_M=");
        path(p1,p2);
    }

}