Core Java, Advance Java, J2EE Technologies, Struts, Spring, Hibernate, Open Source Technologies, JDBC, RMI, EJB, XML, WAP, CORBA, JSP, JFC/ SWING, DHTML, CGI/ Perl, Cold Fusion, UML, JAVA Servlets, Beans, Websphere, Web logic, PHP, Broadvision, OOD , Zoomla etc