import java.util.*;
interface BaseInterface {
A getInfo();
}
class ParentClass implements BaseInterface {
public Integer getInfo()
{
return(null);
}
}
class ChildClass extends ParentClass implements BaseInterface { }
public class BadParents {
public static void main(String args[])
{
Vector v1 = new Vector();
Vector v2;
v1 = v2;
v2 = v1;
}
}