Created
September 9, 2013 15:51
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Showing the show off to S11001001
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| // Show the problem | |
| override def doGet(req: HttpServletRequest, resp: HttpServletResponse) { | |
| resp.setContentType("text/html") | |
| resp.setCharacterEncoding("UTF-8") | |
| // TROUBLE // TROUBLE // TROUBLE | |
| var a:Int = req.getParameter("a").toInt | |
| var b:Int = req.getParameter("b").toInt | |
| var c:Int = req.getParameter("c").toInt | |
| val responseBody: NodeSeq = | |
| <html> | |
| <body> | |
| <h1>Hello, world!</h1> | |
| A some de {a} + {b} + {c} = {a+b+c} | |
| </body> | |
| </html> | |
| resp.getWriter.write(responseBody.toString) | |
| } | |
| // Show the java style solution (a quick one) | |
| override def doGet(req: HttpServletRequest, resp: HttpServletResponse) { | |
| resp.setContentType("text/html") | |
| resp.setCharacterEncoding("UTF-8") | |
| def getParam(p:String):Integer=Integer.parseInt(req.getParameter(p)) | |
| // LESS TROUBLE // LESS TROUBLE // LESS TROUBLE | |
| // but very awkward! Gambis de primeira rolando solta! | |
| var a:Integer = null | |
| var b:Integer = null | |
| var c:Integer = null | |
| try { | |
| a = getParam("a") | |
| } catch { | |
| case ex : NumberFormatException => | |
| } | |
| try { | |
| b = getParam("b") | |
| } catch { | |
| case ex: NumberFormatException => | |
| } | |
| try { | |
| c = getParam("c") | |
| } // LOOK NO CATCH! | |
| val responseBody: NodeSeq = | |
| <html> | |
| <body> | |
| <h1>Hello, world!</h1> | |
| { | |
| if (a != null && b != null & c != null) s"A some de {a} + {b} + {c} = {a+b+c}" | |
| else s"Algum dos números não é valido: a: `{a}` ou b: `{b}` ou c: `{c}` " | |
| } | |
| </body> | |
| </html> | |
| resp.getWriter.write(responseBody.toString) | |
| } |
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