Question

I am trying to understand the following segment of Java code, which was implemented as a simple server

public class testserver extends AbstractHandler
{
   public void handle(String target,
                   Request baseRequest,
                   HttpServletRequest request,
                   HttpServletResponse response) 
    throws IOException, ServletException
 {
    response.setContentType("movie/html");
    response.setStatus(HttpServletResponse.SC_OK);
    baseRequest.setHandled(true);
    response.getWriter().println("<h1>this is a test</h1>");
 }

public static void main(String[] args) throws Exception
{
    Server server = new Server(1234);
    server.setHandler(new testserver());

    server.start();
    server.join();
}

}

I am kind of confusing about the logic of this code. In specific, in the “main” function, it has

server.setHandler(new testserver());

I know it is to create a new server. But this main function is included in the class of testserver itself. So it functions as calling itself recursively, and it will create a lot of testserver. Is my understanding correct?

Answer 1

The main method is not called when a new instance of the class is created. It’s called by the system to start the entire process going.