package foo；  
import java.util.Vector；  
private class MyVector extends Vector { 
int i = 1；  
public MyVector（） {  
i = 2； 
}  
}  
public class MyNewVector extends MyVector {  
public MyNewVector （） {  
i = 4； 
 }  
public static void main （String args ） {  
 MyVector v = new MyNewVector（）； 
 }  
}  
The file MyNewVector.java is shown in the exhibit.  What is the result？（）