Getting ClassNotFoundException while connecting with server side SQL database

import java.sql.*;

public class ConnectDatabase {

Connection dbConnection = null;

String dbName = "Radiocity_Central";
String serverip="192.168.69.189";
String serverport="1433";
String url = "jdbc:sqlserver://192.168.69.189:1433;instance=MSRS11.MSSQLSERVER;Da tabaseName=Radiocity_Central;integratedSecurity=tr ue";
String userName = "sa"; 
String password = "airwaves";
final String driverName = "com.microsoft.sqlserver.jdbc.Radiocity_Centra l";
Statement statement = null;
ResultSet rs = null;
int updateQuery = 0;

public Connection getConnection() {

System.out.println(url);
try{
Class.forName(driverName).newInstance();

dbConnection = DriverManager.getConnection(url,userName,password) ;
System.out.println(DriverManager.getDrivers());

statement = dbConnection.createStatement();

/*String QueryString = "select Id from openview.dbo.OV_MS_Message where OriginalServiceId like '{FaultDn[1]}'";

updateQuery = statement.executeUpdate(QueryString);

if(updateQuery!=0){
System.out.println("success" + updateQuery);
}*/
statement.close();
dbConnection.close();
}
catch (ClassNotFoundException cnfe){
cnfe.printStackTrace();
}
catch (Exception e){
e.printStackTrace();
}
return dbConnection;

}

public static void main(String[] args) {

ConnectDatabase cDB = new ConnectDatabase();
cDB.getConnection();

}

}

jdbc:sqlserver://192.168.69.189:1433;instance=MSRS11.MSSQLSERVER;Da tabaseName=Ra
diocity_Central;integratedSecurity=true
java.lang.ClassNotFoundException: com.microsoft.sqlserver.jdbc.Radiocity_Central

at java.net.URLClassLoader$1.run(URLClassLoader.java: 200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.j ava:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:3 06)
at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:276)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 51)
at java.lang.ClassLoader.loadClassInternal(ClassLoade r.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at ConnectDatabase.getConnection(ConnectDatabase.java :22)
at ConnectDatabase.main(ConnectDatabase.java:52)