@Override
    public void validate() {


        if (platform == null) {

            addActionError("Please Select Platorm");
        }
        if (location == null) {

            addActionError("Please Select Location");
        }
        if (gender == null) {

            addActionError("Please Select Gender");
        }
        if (age == null) {

            addActionError("Please Select Age");
        }
    }