How do we determine the type of Browser ?

This article explains about determining the type of the browser using Custom Filter class

Create a Custom Filter class which implements Filter Interface, get the "User-Agent" from HttpServletRequest class as shown below.

       

      public void doFilter(ServletRequest servletRequest,
                         ServletResponse servletResponse,
                         FilterChain filterChain){
        
        if(servletResponse instanceof HttpServletResponse && servletRequest instanceof HttpServletRequest ){
            HttpServletResponse response = (HttpServletResponse)servletResponse;
            HttpServletRequest request = (HttpServletRequest)servletRequest;
   // This will determine what type of the browser user sends requrest from
            String userAgent=request.getHeader("User-Agent");
   }
   }