multithreading - exit from function if not return value within 30 seconds java -


i have java code send sms .

return delivery report within 15 seconds in many times.(but times not happened)

want stop sms sending functions if not give delivery report withing 15 seconds.

if u can, please give similar sample code or

give links should read that.


thank much...!


`

public string  sendtest(string port )  {  modemname = "huwawi";     bitrate = 115200;     modempin = "0000";     smsc = "+94785000008";  try {         outboundmessage msg;         outboundnotification outboundnotification = new outboundnotification();         serialmodemgateway gateway = new serialmodemgateway(id, "com1", bitrate, modemname, "e17u-1");         gateway.setinbound(true);         gateway.setoutbound(true);         gateway.setsimpin(modempin);          service.getinstance().setoutboundmessagenotification(outboundnotification);          service.getinstance().addgateway(gateway);           service.getinstance().startservice();          msg = new outboundmessage("+94710433607", "test successful !");          service.getinstance().sendmessage(msg);         outboundmessage.messagestatuses status = msg.getmessagestatus();          system.out.println(msg.getmessagestatus());          service.getinstance().stopservice();         service.getinstance().removegateway(gateway);      } catch (exception ex) {         if (ex.getstacktrace()[2].getlinenumber() == 189) {             joptionpane.showmessagedialog(null,                     "port owned usb modem's application. \n please close & run programm again.",                     "port exception",                     joptionpane.error_message);             ex.printstacktrace();         } else {             joptionpane.showmessagedialog(null,                     ex.getmessage(),                     "sending faile",                     joptionpane.error_message);             ex.printstacktrace();         }     }return port; }

`
if give wrong port number code stuck from

service.getinstance().startservice();

if give correct port number delivery report received before 15 seconds.

if give wrong port number,code doesn't give or return value. if code not return value within 15 seconds , know port number wrong one.

want close function automatically if not return value within 15 seconds.

again...!

you should make thread, , stop if nothing happen under 15s. mean :

thread t = new thread(){     @override     public void run()     {          // send sms     } } t.start(); // ... long time = system.currenttimemillis(); while(true) {     if(system.currenttimemillis() - time > 15000)          t.stop(); }

i hope said


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