String driver = "org.gjt.mm.mysql.Driver";

String driver = "com.microsoft.sqlserver.jdbc.SQLServerDriver"

String url="jdbc:mysql://localhost/books?user=<user>&password=<password>";

String url = "jdbc:microsoft:sqlserver://<server_name>:<1433>"

con=DriverManager.getConnection(url);

con=DriverManager.getConnection(url, usr, pwd );

try{
    Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
    Connection conn = DriverManager.getConnection("jdbc:sqlserver://ipaddress:port;databaseName=schema_name","user","pass");

    PreparedStatement pps = conn.prepareStatement("SELECT * FROM table");
    ResultSet rs = pps.executeQuery();
    while(rs.next()){
    //do something
    System.out.println(rs.getString("some col"));
    }
//close connection
conn.close();
    }catch(Exception ex){
      // do something
    }