Issue in sending a string from Android to other device via Bluetooth -

i trying send string android device other device. in code trying fetch date , time , storing in string , sending string device via bluetooth.

the issue when send string, of characters missing when received other device.

my code :

private void time() {     int day = 0;     date = new date();     string sdf = new simpledateformat("eeee", locale.english).format(now);      switch (sdf) {          case ("monday"):             day = 1;             break;         case ("tuesday"):             day = 2;             break;         case ("wednesday"):             day = 3;             break;         case ("thursday"):             day = 4;             break;         case ("friday"):             day = 5;             break;         case ("saturday"):             day = 6;             break;         case ("sunday"):             day = 7;             break;     }      int mm = calendar.getinstance().get(calendar.minute);     int hh = calendar.getinstance().get(calendar.hour_of_day);     int dd = calendar.getinstance().get(calendar.day_of_month);     int mm = calendar.getinstance().get(calendar.month) + 1;     int yy = calendar.getinstance().get(calendar.year) % 100;           string time2 = "a"+mm+hh+"0"+day+dd+mm+yy+"b";         sendmessage(time2); } 

i send string calling sendmessage() function given below.

code :

 private void sendmessage(string message) {     // check we're connected before trying     if (mchatservice.getstate() !=             com.example.hasani.bluetoothterminal.bluetoothchatservice.state_connected) {         toast.maketext(getactivity(), r.string.not_connected, toast.length_short).show();         mstartbutton.setbackgroundresource(r.color.button_default);         mcalbutton.setbackgroundresource(r.color.button_default);         mtestbutton.setbackgroundresource(r.color.button_default);         mmanbutton.setbackgroundresource(r.color.button_default);         mautobutton.setbackgroundresource(r.color.button_default);         return;     }      // check there's send     if (message.length() > 0) {         // message bytes , tell bluetoothchatservice write         byte[] send = message.getbytes();          while (!mchatservice.write(send))         {             try{                 thread.sleep(10);             }             catch (interruptedexception ex){                 //log.d(tag,"interrupted exception");                 //break;             }         }          // reset out string buffer 0 , clear edit text field         moutstringbuffer.setlength(0);     } } 

but if set string string t = "a000000000000b or "a111111111111b" (length = 14), string received other device , can move further operations.

code :

private void time() {     int day = 0;     date = new date();     string sdf = new simpledateformat("eeee", locale.english).format(now);      switch (sdf) {          case ("monday"):             day = 1;             break;         case ("tuesday"):             day = 2;             break;         case ("wednesday"):             day = 3;             break;         case ("thursday"):             day = 4;             break;         case ("friday"):             day = 5;             break;         case ("saturday"):             day = 6;             break;         case ("sunday"):             day = 7;             break;     }      int mm = calendar.getinstance().get(calendar.minute);     int hh = calendar.getinstance().get(calendar.hour_of_day);     int dd = calendar.getinstance().get(calendar.day_of_month);     int mm = calendar.getinstance().get(calendar.month) + 1;     int yy = calendar.getinstance().get(calendar.year) % 100;           string time2 = "a000000000000b";    //*just check out assigning value*//         sendmessage(time2); } 

that if sending string "a000000000000b" length=14, accepted. when on computation did above, values missing starting position of string.

please help! thank you!

in string time2 = "a"+mm+hh+"0"+day+dd+mm+yy+"b"; of fields int means 3rd minute string '3' , not '03'.

if insist on using int, try

string min = string.format("%02d", min); 

or use simpledateformat used earlier day of week.

calendar cal = calendar.getinstance(); simpledateformat dateformat = new simpledateformat("mmhh"); dateformat.setcalendar(cal);  string mmhh = dateformat.format(cal.gettime()));