package typeinfo;

import net.mindview.util.*;

/**

* RUN:

* javac typeinfo/Person.java

* OUTPUT:

*

*/

class Person {

public final String first;

public final String last;

public final String address;

// ...

public Person(String first, String last, String address) {

this.first = first;

this.last = last;

this.address = address;

}

public String toString() {

return "Person: " + first + " " + last + " " + address;

}

public static class NullPerson extends Person implements Null {

private NullPerson() {

super("Null", "Null", "Null");

}

public String toString() { return "NullPerson"; }

}

public static final Person NULL = new NullPerson();

}