Thread: Create Vector of Object

Hi, I'm a newbie.
How can I create a vector of Object. Suppose I declare a class

public class Book{
String id;
String Title;
sign int published;
};

I want to make a data like this

01 Romeo 2000
02 Juliet 3000



Thx.

package friends;

import java.sql.*;
import java.util.*;

public class Friends {

public static void main(String[] args) {
String DRIVER = "com.mysql.jdbc.Driver";
String url = "jdbc:mysql://localhost/friends";
String user = "bobby";
String pass = "ganteng";
Connection conn = null;
Statement s = null;
ResultSet rs = null;
ResultSetMetaData rmd = null;

Vector<friend> data = new Vector<friend>();

try{

Class.forName(DRIVER).newInstance();
conn = DriverManager.getConnection(url, user, pass);
s = conn.createStatement();
System.out.println("Connected to database.");
rs = s.executeQuery("select * from friends");
rmd = rs.getMetaData();
int col = rmd.getColumnCount();

while(rs.next()){
for(int i = 1; i <= col; i++){
System.out.print(rs.getObject(i) + " ");
}
System.out.println();
}
friend fr = new friend();

while(rs.next()){

fr.id = rs.getString(1);
fr.name = rs.getString(2);
data.add(fr);
}

System.out.println(data.size());

for(int i = 0; i < data.size(); i++){
System.out.print(data.elementAt(i).id);
System.out.println(data.elementAt(i).name);
}

rs.close();
s.close();

}

catch(Exception e){
e.printStackTrace();
}
}
}

class friend {
String id;
String name;
}

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Something wrong with the vector. It supposed to output

1 J1
2 J2
3 J3
4 J4
5 J5

But, it doesnt print anything. Pls help what wrong with Vector declaration.