throws ServletException, IOException {
resp.getWriter().print("Hello from Java!\n");
}
public static void main(String[] args) throws Exception {
WebServer webServer = WebServer.getInstance();
webServer.setPort(System.getenv("PORT"));
String webappDirLocation = "src/main/java/com/mycompany";
webServer.setWebAppDirectoryLocation(webappDirLocation);
//servlets for sms service
webServer.addServlet("HelloWorld", "com.mycompany.HelloWorld");
webServer.addServletMapping("/helloworld", "HelloWorld");
webServer.start();
}