Java.lang.ClassCastException at DriverManager.getConnection

Question

Hi all,
i need to connect to SQL server DB which exist on a server
and java.lang.ClassCastException appear when executing the line
Connection conn = (Connection)DriverManager.getConnection(url,username,password);
the following is the code which i use:
String serverName = "64.15.155.101";
String portNumber = "1433";
String mydatabase = "MMSMS";
String username = "u";
String password = "p";
// Step 1: Load the JDBC driver.
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
// Step 2: Establish the connection to the database.
String url = "jdbc:sqlserver://"+serverName
+";databaseName="+mydatabase;
System.out.println(url);
DriverManager.registerDriver(new com.microsoft.sqlserver.jdbc.SQLServerDriver());
Connection conn = (Connection)DriverManager.getConnection(url,username,password);
System.out.println("connection succesful");

Answer 1

Why are you casting there? Do you have a class named Connection in your own code?
It would seem so.
Do this
java.sql.Connection conn = DriverManager.getConnection(url,username,password);You shouldn't need a cast there. So the fact you are using one suggests that you had an earlier problem with a conflict with a Connection class of your own.