（求助）一个Java连接数据库的问题！

下面是我写的一个操作数据库的简单程序
Java code:
import java.sql.*;

public class Gradation {
static Connection con;
static Statement sql;
static ResultSet res;
public Connection getConnection(){
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
System.out.println("数据库驱动加载成功");
}catch(ClassNotFoundException e){
e.printStackTrace();
}
try{
con = DriverManager.getConnection("jbdc:odbc:javaicq","","");
System.out.println("数据库连接成功");
}catch(SQLException e){
e.printStackTrace();
}
return con;
}
public static void main(String[] args) {
Gradation c = new Gradation();
con = c.getConnection();
try{
sql = con.createStatement();
res = sql.executeQuery("select * from student");
while(res.next()){
String id = res.getString("id");
String name = res.getString("name");
int age = res.getInt(3);
System.out.println("编号： "+id);
System.out.println("性别： "+name);
System.out.println("编号： "+age);