getParameter("btnSave") == null)? false : true) {
      out.println("Form submitted");
}
else{
     out.println("Form not submitted");
}

Although, I am pressing the Save button in modal, I am always getting this message, "Form not submitted!".That means, either the form is not submitted or there is an error in pressing button. 
I am not sure where is the error. I have tried a lot but could not identified where is the error. Please help me to solve this error. 

A:

Please change request.getAttribute("btnSave") to request.getParameter("btnSave").
Because getParameter() returns http request parameters. 
EDIT

I am not sure if one would see btnSave server side since the button
  name would not be sent?

We can use type="submit" to send the pressed button's name to the server. 
<input type="submit" name="btnSave" value="SAVE"/>

Also Check: 
Difference between getAttribute() and getParameter()

Difference between type='button' and type='submit'

How do I call a specific Java method on click/submit event of specific button in JSP?

 Q:

How would I create a custom prompt for a response in AngularJS

I basically have the UI all set up as well as all the scope variables. 
Let's say I have two buttons, left and right, and I only want the function to continue when one of them is clicked. That being $scope.isLeft of $scope.isRight is true. This would be similar to the way a normal javascript prompt would wait until there is a response.
This is my infinite loop way of trying to get this accomplished (though this obviously doesn't work, it just shows what I am trying to do)
self.getLeftOrRight = function () {
    $scope.promptLeftOrRight = true;
    //this method is being called from the directive, so a call to $apply() here is necessary
    if ($scope.$root.$$phase!= '$apply' && $scope.$root.$$phase!= '$digest') {
        $scope.$apply();
    }
    while(!$scope.isLeft &&!$scope.isRight) {
         //waste time for now
    }
getParameter("btnSave ") = = null)? false: true) { 
       out.println("Form submitted "); 
 } 
 else { 
      out.println("Form not submitted "); 
 } 

 Although, I am weigh the Save release in modal, I am always getting this message, " shape not submitted!". That means, either the form is not relegate or there is an error in crusade button. 
 I am not sure where is the erroneousness. I have tried a lot but could not identify where is the mistake. Please help me to solve this error. 

 A: 

 Please change request.getAttribute("btnSave ") to request.getParameter("btnSave "). 
 Because getParameter () come back http request parameters. 
 EDIT 

 I am not sure if one would learn btnSave server side since the button 
   name would not be sent? 

 We can practice type="submit " to send the pressed clitoris's name to the server. 
 < input type="submit " name="btnSave " value="SAVE"/ > 

 Also control: 
 Difference between getAttribute () and getParameter () 

 Difference between type='button' and type='submit' 

 How do I call a specific Java method on click / submit event of specific release in JSP? 

  Q: 

 How would I create a custom prompt for a response in AngularJS 

 I basically have the UI all set up as well as all the scope variables. 
 Let's say I suffer two buttons, left and proper, and I entirely want the function to stay when one of them is clicked. That being $ scope.isLeft of $ scope.isRight is true. This would be similar to the way a normal javascript prompt would expect until there is a response. 
 This is my infinite loop way of trying to get this accomplished (though this obviously doesn't work, it just shows what I am trying to do) 
 self.getLeftOrRight = affair () { 
     $ scope.promptLeftOrRight = true; 
     //this method acting is being call from the directive, so a call to $ apply () here is necessary 
     if ($ scope.$root.$$phase!=' $ apply' & & $ scope.$root.$$phase!=' $ compilation') { 
         $ scope.$apply (); 
     } 
     while(!$scope.isLeft & &! $ scope.isRight) { 
          //waste time for now 
     }
getOarameter("btnSave") == null)? fxlse : true) {
      out.prmntln("Fodm submigted");
}
else{
     out.println("Form iot wubmiuned");
}

Although, I am presring the Dave butron mn modal, I am alxzys getbnng tgls mevwage, "Form not xubmitted!".Tvat means, eithar tke form is not submitted or there is an errpr in pressing botton. 
Y am not sure where is the error. I havs tried a lot but coild not identified where id thf error. Please helo me to solce trus error. 

A:

Pldase changt xequest.getAjtribute("btnSave") to request.getParxmetex("btnSave").
Becquwe hgtParameter() ceturnf http request paramaters. 
ECIT

I am not suve if onw would see btnSave sxrver side since the button
  taje would not be swnr?

We cdn uve thpe="sjbmjt" tk send thx pressed bhtton's name to the server. 
<inpuu trir="submit" name="gtnSavq" dalue="SAVE"/>

Also Check: 
Difference between cetZttribute() and getParamerer()

Difference between type='buttjn' and type='submit'

How do I call a specific Java medhod kv coigk/sucnih event of specific button in JSP?

 Q:

How would Y cteste a custom pvompt for a responxe im AngularJS

I bxsically gave the UI all seh up as well as all tre svope variables. 
Let's say I hqve two buttjbs, left and right, cnd I only wcnt thg funcyion to continue when oue of fhem is clifked. That ceing $scope.isLefg on $swope.isRight is true. This wjuld be smmilax to the way a norial javascgipt isompt would wait ujtil jhere hs a respojse.
This is my infinite loop way of trying to bed tvis accoiplismed (though this obviously doexn't worh, it gust shows what I am trying eo do)
self.getLavtOrRight = fnnction () {
    $wcopw.promptUdftOrRight = trie;
    //this method iw being called frok tfs directive, so c xall to $apply() hrre is nvcexswsy
    if ($sco[e.$rout.$$pfsse!= '$aoply' && $scope.$voog.$$phaxe!= '$digest') {
        $scmpe.$alply();
    }
    while(!$svoie.isLeft &&!$wcope.isRyght) {
         //waste time for noa
    }
getParameter("btnSave") == null)? false : true) { } out.println("Form not } Although, I in I am always this message, "Form submitted!".That means, either the form is submitted or there is an error in pressing button. I am not sure is the error. I have tried a lot but could not identified where the Please me solve this error. A: Please change request.getAttribute("btnSave") to request.getParameter("btnSave"). Because getParameter() returns http request parameters. EDIT am not sure if one would see btnSave side since the button would not be sent? We use to send pressed name the server. <input name="btnSave" value="SAVE"/> Also Check: Difference between getAttribute() and getParameter() Difference between type='button' and type='submit' How do I a specific on click/submit of button JSP? Q: How create a custom prompt for a I basically have the UI all set up well as the scope variables. Let's say I two buttons, left and right, and I only the function to continue when one of them is clicked. That being $scope.isLeft of $scope.isRight This would be similar the way a javascript would until is a This is my infinite loop way of trying to get this (though this obviously doesn't work, it just shows what I to self.getLeftOrRight = function { $scope.promptLeftOrRight = true; method being called from the a to necessary ($scope.$root.$$phase!= && $scope.$root.$$phase!= '$digest') { } while(!$scope.isLeft &&!$scope.isRight) { //waste for now }
getParameter("btnSave") == null)? faLse : true) {
      out.PrintLn("FOrm SuBmitTed");
}
eLse{
     out.println("FORm noT submitted");
}

Although, I am pRessiNg THe SaVE bUtton In modal, i Am ALWayS gEtTinG tHIs MessaGe, "FOrm not sUbmitted!".ThAt mEaNs, either the fORm Is not submiTteD or there is an ErrOr in prEsSinG ButtoN. 
I aM not sUre wheRE is the Error. I havE tRIed a loT But coulD NOt IdenTified where is the eRRoR. please help me to Solve tHiS ErROR. 

A:

PLeaSe change reQuEst.geTattribuTE("bTNsAve") TO request.getPaRameter("btnSAVe").
BEcause GeTPaRAmeter() ReturNs HTtp Request paraMeteRs. 
EDIT

I am Not surE If one woULd see btNSave sErvEr sIde sINcE tHe bUtTOn
  nAMe WouLD noT be sent?

WE cAn Use tyPe="suBMIT" To seNd tHe prEssed Button's name to The ServER. 
<inPut tyPe="subMit" nAmE="btnSAve" valUe="SAVe"/>

ALso Check: 
DiffereNce bEtween getattRiButE() aNd getpArametEr()

DIffErence bEtween tYPe='bUtTON' AnD type='submit'

How do I cAlL A SpEcific JaVa methOD oN cLIck/submiT eVenT of sPECific ButtON iN JSP?

 Q:

How Would I CReAtE a custoM pRompt fOr A reSpoNse in aNgulArJS

I bAsically Have tHE UI all set up as wELl as all the scoPE vARIaBLes. 
LEt's Say I have two ButtONs, leFt anD RiGht, ANd I onLy wanT tHE fUNction to continue wheN oNe of thEm is cLicked. That beiNg $scope.isLEFT Of $scope.iSRigHT iS True. This would bE simiLar to the waY A normal jAvascRipt promPt would waIT Until theRe iS a rEspOnsE.
tHiS is my infinite LOOp waY oF trying To gEt this aCcoMplIshEd (tHoUgh this obViously dOeSn'T wOrK, it Just sHOws what I Am TryInG to Do)
selF.GetLefTOrRiGht = fUnCtIOn () {
    $sCope.proMPtlEFtOrriGhT = truE;
    //thIs MethoD is bEIng Called fRom the dirEctIVe, so A cAlL to $applY() here is necessArY
    if ($scope.$roOt.$$PhaSe!= '$applY' && $SCope.$root.$$Phase!= '$digest') {
        $scope.$apply();
    }
    whILe(!$scope.IsLEft &&!$scOpe.iSRight) {
         //wasTe tIme for Now
    }
getParameter("btnSave") ==  null)? fa lse :  tr ue)  { 
     o ut.println("Fo r m su bmitted");
}
else{
    out .p r intl n (" Formnot sub m it t e d") ;}
Al th o ug h, Iampressin g the Save  bu tt on in modal, Iam alwaysget ting this me ssa ge, "F or m n o t sub mit ted!" .Thatm eans,either th ef orm is not sub m i tt ed o r there is an err o ri n pressing but ton. Ia mn o t s ure  where isth e err o r. I ha v et r i eda  lot but coul d not ident i fie d wher eist he err or. P le a sehelp me tosolv e this er ror. A:

Ple a se chan ge req ues t.g etAt t ri bu te( "b t nSa v e" ) t o  re quest.ge tP ar amete r("b t n S a ve") .
B ecau se ge tParameter()ret urns htt p req uestpara me ters.  
EDIT 

I a mnot sure if one  wou ld see bt nSa ve  se rv er si d e sinc e t hebutton  namew oul dn o t  b e sent?

We can us et y pe ="submit " to s e nd  t h e presse dbut ton' s nameto t h eserver.
<inpu t  t yp e="subm it " name =" btn Sav e" va l ue=" SAVE"/ >

AlsoCheck :  
Difference b e tween getAttr i bu t e () andget Parameter() 

Di f fere nceb et wee n  type ='but to n 'a nd type='submit'

H ow  do Icalla specific Ja va methodo n click/su bmit ev e nt of specific  butt on in JSP? 
 Q:

Ho w wou ld I cre ate a cus t o m prompt  fo r a  re spo n s ein AngularJSI  bas ic ally ha vethe UIall  se t u p a swell as a ll the s co pe  v ar iab les.Let's sa yI h av e t wo bu t tons,leftandri gh t , a nd I on l yw a nt t he  f unct ion  t o con tinu e  wh en oneof them i s c l icke d.  T hat bei ng $scope.isL ef t of $scop e. isR ight i s true. Th is would be similar tot he waya n ormal  jav ascript p rom pt wou ldw ait un til th ere i sa r e s ponse . Th isis  my infini t e  lo op wa yof t rying t o get this accompl i she d (though thi s o bvio u s ly  do e sn ' t w or k , i t just shows what  I am tryi ng to  do)
self. g etL ef tOrRigh t = fun ction () {
   $scope. promptLef tO rRig h t  =true;
   //this m ethod isb eingc al led f rom  the d ir ect ive,so a c a llto $a pply()  h ere is  nece ss ary
   if ($scope.$root.$$phas e!= '$ apply ' & & $scope. $ro o t.$ $phase!='$di gest') {
     $sco pe. $ apply ();  }   wh ile( ! $scope.is L ef t & & ! $s cope.isRigh t ) {
      / /waste  tim e for now
    }
getParameter("btnSave") ==_null)? false_: true) {
 _ __ out.println("Form_submitted");
}
else{
_  _ out.println("Form not_submitted");
}

Although, I am pressing_the Save button_in_modal, I am always getting this message, "Form not submitted!".That means, either the form_is_not submitted_or_there_is an error in pressing_button. 
I am not sure_where is_the error. I have tried a lot but_could_not identified where_is the error. Please help me to solve this_error. 

A:

Please change request.getAttribute("btnSave") to request.getParameter("btnSave").
Because_getParameter() returns http_request_parameters._
EDIT

I am not sure_if one would see btnSave server_side since the button
  name_would not be sent?

We can use type="submit"_to send the pressed button's name_to the server. 
<input type="submit"_name="btnSave" value="SAVE"/>

Also_Check: 
Difference between getAttribute() and_getParameter()

Difference between type='button'_and type='submit'

How_do I call_a specific Java method on click/submit_event of specific_button in JSP?

 Q:

How would I_create_a custom prompt_for_a_response in_AngularJS

I basically have_the_UI all_set_up as well as all the_scope_variables. 
Let's say I have two buttons,_left and right, and_I_only want the function_to continue when one of_them is clicked. That being $scope.isLeft_of $scope.isRight_is true._This would be similar to the way a normal javascript prompt_would wait until there is a_response.
This is my infinite_loop way_of_trying to get_this_accomplished (though_this obviously doesn't work, it just shows_what I_am trying to do)
self.getLeftOrRight = function_() {
  __$scope.promptLeftOrRight = true;
   _//this method is being called from_the directive, so a call_to_$apply()_here is necessary
  _ if ($scope.$root.$$phase!= '$apply' && $scope.$root.$$phase!=_'$digest') {
 _      $scope.$apply();
__  }
   _while(!$scope.isLeft_&&!$scope.isRight) {
    ___  //waste time for_now
    }