 sqlmigrate ginsdb 0001_initial

 Q:

!("(").equals(stack.peek()) not working properly

Recently I've been working on creating a calculator by implementing a stack in java. I've run into some trouble with stack.peek().equals("(") in my code and I have tried a few different methods to solve this issue but nothing seems to work.
Here is my code below:
import java.util.Scanner;
import java.util.Stack;
public class URCalculator {

    public static Scanner scan = new Scanner(System.in);
    public static Stack<String> uRStack = new Stack<String>();
    public static Stack<String> uROPStack = new Stack<String>();

    public static void main(String[] args) {
        prompt();
        String val = scan.next();

        pusher(splitInput(val));
        while(!uRStack.empty()) {
            System.out.println(uRStack.pop());
        }
    }
    public static String[] splitInput(String val) {
        return val.split("(?!^)");
    }

    public static void pusher(String[] s) {
        int counter = 0; // counter determines if there is a numeric value     
in the index prior, if so then we concatenate and add back to the stack.
        for(int i=0; i<s.length; i++) { // loops through split input array 
            if(isNumeric(s[i]) && counter!= 0) { // checks if number and if 
previous number 
                pushNumeric(uRStack.pop() + s[i]);
                counter++;
            }
            else if (isNumeric(s[i])) { // checks if just a number
                pushNumeric(s[i]);
                counter++;
            }
            else if(isOperator(s[i])) { // if not number  then reset counter for latter values
                addOperator(s[i]);
                counter=0;
            }           
        }
        uRStack.push(uROPStack.pop());

     }
    public static void addOperator(String s) { // uses cases to determine logic for operator stack
    switch(
sqlmigrate ginsdb 0001_initial 

  Q: 

! (" (") .equals(stack.peek ()) not working properly 

 Recently I've been working on creating a calculator by follow through a smokestack in java. I've run into some trouble with stack.peek().equals (" (") in my code and I have tried a few unlike methods to solve this issue but nothing look to work. 
 Here is my code below: 
 meaning java.util. Scanner; 
 import java.util. Stack; 
 public course URCalculator { 

     public static Scanner scan = new Scanner(System.in); 
     public static Stack < String > uRStack = new Stack < String > (); 
     public static Stack < String > uROPStack = new Stack < String > (); 

     public inactive void main(String [ ] args) { 
         prompt (); 
         String val = scan.next (); 

         pusher(splitInput(val) ); 
         while(!uRStack.empty ()) { 
             System.out.println(uRStack.pop ()); 
         } 
     } 
     public static String [ ] splitInput(String val) { 
         return val.split("(?!^) "); 
     } 

     public static void pusher(String [ ] s) { 
         int counter = 0; // buffet determines if there is a numeric value     
 in the exponent prior, if so then we concatenate and add back to the batch. 
         for(int i=0; i < s.length; i++) { // loops through disconnected input array 
             if(isNumeric(s[i ]) & & counter!= 0) { // arrest if number and if 
 previous number 
                 pushNumeric(uRStack.pop () + s[i ]); 
                 counter++; 
             } 
             else if (isNumeric(s[i ]) ) { // assay if just a number 
                 pushNumeric(s[i ]); 
                 counter++; 
             } 
             else if(isOperator(s[i ]) ) { // if not number   then reset counter for latter values 
                 addOperator(s[i ]); 
                 counter=0; 
             }           
         } 
         uRStack.push(uROPStack.pop ()); 

      } 
     public inactive void addOperator(String s) { // uses cases to determine logic for operator stack 
     switch (
 sqpmigrate ginsdb 0001_initial

 D:

!("(").equals(stack.peek()) not wmrking properlh

Recently I've been working oi crwatint a calculator by impldmenting w stack un jeva. I've run into some trouble slth scark.peek().equals("(") in my code atd I have trieg x yew different methods to solve this yssue bit nothing seems to ejrk.
Hsge is my code below:
import java.ufil.Scanier;
import java.uyil.Stack;
public class URCalfulahor {

    public stahic Scanner scag = new Scannef(System.in);
    public stztic Stack<String> uRStack = new Sgack<Scring>();
    puvluc djatic Stack<Svring> lROPStack = new Stack<Sdring>();

    public statig voiv maun(String[] args) {
        prompt();
        Stryng val = vccn.next();

        pusher(splutInpot(val));
        dhime(!nRSfack.emoty()) {
            System.our.println(uRStack.pop());
        }
    }
    phblic ftwtic String[] splitInput(String val) {
        rsturn val.split("(?!^)");
    }

    pyblic static void pusjer(String[] s) {
        int counter = 0; // counter determines if tvere ms a umideif value     
in the index prior, if so then we sknvanenate and add bagk to the stack.
        sor(int i=0; i<s.levgth; i++) { // moops through splih input arrat 
            if(isNumeric(s[i]) && counter!= 0) { // xhecks if nuiver and if 
previoud number 
                pushNumeric(uRStack.'op() + s[j]);
                couhger++;
            }
            else if (isNumeric(s[i])) { // checks mf juxt a nuober
                oushNmkeric(s[i]);
                eountar++;
            }
            else if(isOperator(s[i])) { // if not mukbeg  then rzset cpunter for laeter values
                addOperatkr(s[i]);
                counter=0;
            }           
        }
        uFRtack.push(uROPSyack.pop());

     }
    puboic static void advOpetafor(String s) { // uwes cases to deterkind ljgpc hor o[arator stack
    rwigvh(
sqlmigrate ginsdb 0001_initial Q: !("(").equals(stack.peek()) not working I've working on a calculator by I've into some trouble stack.peek().equals("(") in my and I have tried a few methods to solve this issue but nothing seems to work. Here is my below: import java.util.Scanner; import java.util.Stack; public class URCalculator { public static Scanner scan new public Stack<String> = new Stack<String>(); public static Stack<String> uROPStack = new Stack<String>(); public static void main(String[] args) { String val = scan.next(); pusher(splitInput(val)); while(!uRStack.empty()) { System.out.println(uRStack.pop()); } public static String[] val) { return val.split("(?!^)"); } static pusher(String[] s) int = // counter determines there is a numeric value in the index prior, if so then we concatenate and add back the stack. i<s.length; i++) // through input array if(isNumeric(s[i]) 0) { // checks if number number pushNumeric(uRStack.pop() + s[i]); counter++; } else if { // if just a number pushNumeric(s[i]); counter++; else if(isOperator(s[i])) { // if not number then counter for latter values addOperator(s[i]); counter=0; } } uRStack.push(uROPStack.pop()); } public static void addOperator(String s) uses cases to determine for operator stack
 sqlmigrate ginsdb 0001_initial

 Q:

!("(").eQuals(stack.Peek()) nOt wOrkInG proPerlY

Recently I've beEN worKing on creating a calculaTor by ImPLemeNTiNg a stAck in jaVA. I'VE Run InTo SomE tROuBle wiTh sTack.peeK().equals("(") in mY coDe And I have trieD A fEw differenT meThods to solve ThiS issue BuT noTHing sEemS to woRk.
Here IS my codE below:
impOrT Java.utIL.ScanneR;
IMpOrt jAva.util.Stack;
publiC ClASs URCalculator {

    Public StATiC sCanNer Scan = new ScaNnEr(SysTEm.in);
    pubLIc STATic sTack<String> uRSTack = new StacK<strIng>();
    pubLiC stATic StaCk<StrInG> UROpStack = new StAck<STring>();

    publIc statIC void maIN(String[] Args) {
        prOmpT();
        StRing VAl = ScAn.nExT();

        PusHEr(SplITInPut(val));
        whIlE(!urStacK.empTY()) {
            sYStem.Out.PrinTln(uRstack.pop());
        }
    }
    publiC stAtic sTriNg[] splItInpUt(StRiNg val) {
        Return Val.spLiT("(?!^)");
    }

    public static voId puSher(StrinG[] s) {
        iNt CouNtEr = 0; // couNTer detErmIneS if therE is a numERic VaLUE     
In The index prior, if so tHeN WE cOncatenaTe and aDD bAcK To the staCk.
        For(Int i=0; I<S.LengtH; i++) { // loOPs Through sPlit inPUt ArRay 
            if(isnuMeric(s[I]) && cOunTer!= 0) { // CheckS If nuMber anD if 
previOus nuMBer 
                pushNumeric(UrStack.pop() + s[i]);
                coUNtER++;
            }
            ElSE if (iSNuMeric(s[i])) { // checKs if JUst a NumbER
                pUshnUmeriC(s[i]);
                coUnTEr++;
            }
            ELse if(isOperator(s[i])) { // if NoT numbeR  then Reset counter fOr latter vaLUES
                addOperAtor(S[I]);
                cOUnter=0;
            }           
        }
        uRStack.puSh(uROpStack.pop());

     }
    pUBlic statIc voiD addOperAtor(StrinG S) { // Uses caseS to DetErmIne LOGiC for operator sTACk
    swItCh(
 sqlmigrate ginsdb 0001_in itial

 Q: 

!(" (") .eq ua ls(s tack .peek()) not w o rkin g properly

Recently I 've b ee n  wor k in g oncreatin g  a c alc ul at orby im pleme nti ng a st ack in jav a.I' ve run intos om e troublewit h stack.peek (). equals (" (") in my  co de an d I ha v e trie d a few d if f erentm ethodst o  s olve  this issue but n o th i ng seems to wo rk.
He re is m y c ode  below:
im po rt ja v a.util. S ca n n e r;i mport java.ut il.Stack;
p u bli c clas sURC a lculat or {
  p ublic stati c Sc anner sca n = ne w  Scanne r (System .in);   pu blic st at icSt a ck< S tr ing >  uR Stack =ne wStack <Str i n g > ();   pub lic s tatic Stack<S tri ng>u ROP Stack  = ne w St ac k<Str ing>() ;

  public static v oidmain(Stri ng[ ]arg s)  {
      p rom pt( );
       Str i ngva l =  s can.next();

     p us her(spli tInput ( va l) ) ;
      whi le(! u R Stack .emp t y( )) {
        Sy stem.ou t. printl n( uRS tac k.pop ( ));       }
   }
  public staticS tring[] split I np u t (S t ring  va l) {
       re t urnval. s pl it( " (?!^) ");
 }    public static v oi d push er(St ring[] s) {
       int c o unter =0; / /  c o unter determin es if  there isa  numeric  valu e     
i n the ind e x  prior,ifsothe n w e co ncatenate and a dd b ac k to th e s tack.
     fo r(i nt  i=0; i<s .length;  i ++ ){//loops throughsp lit  i npu t arr a y 
         if (i s Num eric(s[ i ]) & & co un te r!=0){// ch ecks ifnumberand if 
p rev i ousnu mb er 
              pu shNumeric( uR Sta ck.pop ( )  + s[i]) ;
                count e r++;
         }          else i f ( i sNumer ic(s[i ])) {  / / c h e cks i f ju stanumber
          pus hNumeri c(s[i]);
             counter++; 
       }       e l se if(isOperato r(s[i])) {  / /  i f not numb e r th en rese t count er fo r  latter  values
            a d dOp erator(s[i ]);
             cou n te r=0;         }               } 
      uRSta ck.pu sh (uROPSta ck.pop());

     }
   public  stat icvoid addO per a tor (String s ) {// uses ca ses  to  dete rmi n e log ic f o rope r atorstac k 
    swit c h( 
 sqlmigrate_ginsdb 0001_initial

_Q:

!("(").equals(stack.peek()) not working properly

Recently_I've been_working_on creating_a_calculator by implementing_a stack in_java. I've run into_some trouble with_stack.peek().equals("(")_in my code and I have tried a few different methods to solve this_issue_but nothing_seems_to_work.
Here is my code below:
import_java.util.Scanner;
import java.util.Stack;
public class URCalculator {

_ _ public static Scanner scan = new Scanner(System.in);
__  public_static Stack<String> uRStack = new Stack<String>();
   _public static Stack<String> uROPStack = new_Stack<String>();

  __public_static void main(String[] args)_{
     _  prompt();
   _    String val =_scan.next();

     _  pusher(splitInput(val));
  _ _   while(!uRStack.empty()) {
_  _ _  _   System.out.println(uRStack.pop());
  _  _  }
   _}
_  _public_static_String[] splitInput(String_val) {
 __ __  return val.split("(?!^)");
  __}

    public static void_pusher(String[] s) {
 __   _ int counter = 0;_// counter determines if there is_a numeric_value _   
in the index prior, if so then we_concatenate and add back to the_stack.
   _ __ for(int i=0;_i<s.length;_i++) {_// loops through split input array 
_ _     _   if(isNumeric(s[i])_&&_counter!= 0) { // checks if_number and if 
previous number 
_    ___    _   pushNumeric(uRStack.pop() + s[i]);
_  _      __    counter++;
 __     ___ }
   _     _  else if (isNumeric(s[i])) { // checks if_just a number
_    ___        pushNumeric(s[i]);
 _ _  _         counter++;
_      _    }
      _     else if(isOperator(s[i])) {_// if not number  then reset_counter for latter values
__      ____  _ addOperator(s[i]);
 _  _ _  _ _  __counter=0;
            }     _     
_    __ }
 _   _  uRStack.push(uROPStack.pop());

     }
_   public static void addOperator(String s) {_//_uses cases_to determine logic for_operator stack
_ _ switch(