Class.forName("net.sourceforge.jtds.jdbc.Driver")

Connection conn = null;
        try
        {
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            conn= DriverManager.getConnection("jdbc:sqlserver://localhost:1433/HR_Dbase","Burak AMASYALI","****");
            System.out.println("connected");

        }
        catch (Exception e)
        {
            e.printStackTrace();
        }

com.microsoft.sqlserver.jdbc.SQLServerException: The port number 1433/HR_Dbase is not valid.
        at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source)
        at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source)
        at java.sql.DriverManager.getConnection(DriverManager.java:582)
        at java.sql.DriverManager.getConnection(DriverManager.java:185)
        at sqlserverconnection.Main.main(Main.java:29)
java.lang.NullPointerException
        at sqlserverconnection.Main.main(Main.java:40)