1*f1fbf3c2SXin Li package sample.vector; 2*f1fbf3c2SXin Li 3*f1fbf3c2SXin Li public class Sample extends java.util.Vector { add(X e)4*f1fbf3c2SXin Li public void add(X e) { 5*f1fbf3c2SXin Li super.addElement(e); 6*f1fbf3c2SXin Li } 7*f1fbf3c2SXin Li at(int i)8*f1fbf3c2SXin Li public X at(int i) { 9*f1fbf3c2SXin Li return (X)super.elementAt(i); 10*f1fbf3c2SXin Li } 11*f1fbf3c2SXin Li } 12*f1fbf3c2SXin Li 13*f1fbf3c2SXin Li class X { 14*f1fbf3c2SXin Li } 15