初学Java的问题：JDBC 的例子编译不通

[TrueZq]

//JDBCDemo.java 程序如下：
import java.sql.*;
import java.sql.DriverManager;

public class JDBCDemo
{
public static void main(String args[])
{
try
{
Statement stmt;
PreparedStatement pstmt;
ResultSet rs;

Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
String url = "jdbc:odbc:JDBCDemo";
//下面这句编译不通!!
Connection con = DriverManger.getConnection("jdbc:odbc:JDBCDemo","","");

System.out.println("URL:" + url);
System.out.println("Connection:" + con);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}

////////////////////////////////////////////////

F:\Java\JavaTTT\Jdbcdemo>javac jdbcdemo.java
编译错误如下：
jdbcdemo.java:17: cannot resolve symbol
symbol : variable DriverManger
location: class JDBCDemo
Connection con = DriverManger.getConnection("jdbc:odbc:JDBCDemo","","");
^
1 error

怎么回事？如何解决？

[study_body]

Connection con = DriverManger.getConnection("jdbc:odbc:JDBCDemo","","");

to

Connection con = DriverManager.getConnection("jdbc:odbc:JDBCDemo","","");

[TrueZq]

我太粗细了,Thanks.