这段代码中加try有什么作用和好处？

问题相关代码，请勿粘贴截图

protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { response.setContentType("text/html;charset=UTF-8")
try (PrintWriter out = response.getWriter()) {
/* TODO output your page here. You may use following sample code. */
out.println("");
out.println("");
out.println("");
out.println("

");
out.println("");
out.println("");
out.println("

Servlet NewServlet at " + request.getContextPath() + "

");
out.println("");
out.println("");
}
}

把会出现异常的语句放到try后的()内，这样就不用对异常进行处理，如果该方法出现异常会直接上抛，由调用方处理
好处不知道有啥
作用，可能就是统一处理异常吧