Update data in a table in Java

    /*from w ww  .j  av a 2s  . c o  m*/

import java.sql.Connection;
import java.sql.PreparedStatement;

public class Main {
  public static void main(String[] argv) throws Exception {
    Connection con = null;
    PreparedStatement prepstmt;
    prepstmt = con.prepareStatement("UPDATE employee SET Name = ? "
        + " WHERE Id = ?");
    prepstmt.setString(1, "Smith");
    prepstmt.setString(2, "1");
    prepstmt.executeUpdate();

    prepstmt.close();
    con.close();
  }
}