java - Set JTextArea from a JTextField in a different class -


i have till application, takes prices , product name db , totals prices in jtextfield in gui. when click pay, im trying take totaled price , put in class in jtextarea within frame. can't seem work. i've been using settext() , gettext() try , make work , have wrote getter gets total. ive tried far in code below.

// method 1 of jbuttons on gui // adds total , sets in jtextfield called totaltf

americanosmall.addactionlistener(         new actionlistener()         {             public void actionperformed(actionevent e)             {                 try {                     string query = "select productname, price product productid = 24";                     java.sql.preparedstatement pst = connection.preparestatement(query);                     resultset rs = pst.executequery();                      // loop through resultset , transfer in model                     java.sql.resultsetmetadata rsmd = rs.getmetadata();                     int colno = rsmd.getcolumncount();                     while(rs.next()){                      object[] objects = new object[colno];                       for(int i=0;i<colno;i++){                       objects[i]=rs.getobject(i+1);                       }                      defaulttablemodel model = (defaulttablemodel)table.getmodel();                      model.addrow(objects);                      stock s = new stock();                      // deduct stock db                       //s1.deductstock(24);                      total = total + s.getitemprice(24);                      totaltf.settext(string.valueof(total));                      totaltf.settext(string.format("%.2f", total));                      }                     tablemodel model = (defaulttablemodel)table.getmodel();                     table.setmodel(model);                     } catch (exception e1)                      {                         e1.printstacktrace();                     }                 }             });  // calculate class im trying set total gui till class // im trying set total totaltextpane can work out change give customer based on amount of money tendered customer.  package classes;  import java.awt.*; import javax.swing.border.*; import javax.swing.text.caret;  import java.awt.event.*; import javax.swing.*;  public class calculate extends jframe {      private jpanel contentpane;     private double total;     private double change;     private double amounttendered;       /**      * launch application.      */     public static void main(string[] args) {         eventqueue.invokelater(new runnable() {             public void run() {                 try {                     calculate frame = new calculate();                     frame.setvisible(true);                 } catch (exception e) {                     e.printstacktrace();                 }             }         });     }      /**      * create frame.      */     public calculate() {         settitle("payment");         setdefaultcloseoperation(jframe.exit_on_close);         setbounds(100, 100, 450, 591);         contentpane = new jpanel();         contentpane.setborder(new emptyborder(5, 5, 5, 5));         setcontentpane(contentpane);         contentpane.setlayout(null);          jlabel lbltotal = new jlabel("total");         lbltotal.sethorizontalalignment(swingconstants.center);         lbltotal.setfont(new font("tahoma", font.plain, 15));         lbltotal.setbounds(26, 39, 141, 31);         contentpane.add(lbltotal);          jlabel lblamounttendered = new jlabel("amount tendered");         lblamounttendered.sethorizontalalignment(swingconstants.center);         lblamounttendered.setfont(new font("tahoma", font.plain, 15));         lblamounttendered.setbounds(26, 111, 141, 31);         contentpane.add(lblamounttendered);          jlabel lblchange = new jlabel("change");         lblchange.sethorizontalalignment(swingconstants.center);         lblchange.setfont(new font("tahoma", font.plain, 15));         lblchange.setbounds(26, 177, 141, 31);         contentpane.add(lblchange);          jtextpane totaltextpane = new jtextpane();         totaltextpane.setbounds(197, 39, 173, 45);         contentpane.add(totaltextpane);         jtextpane tenderedtextpane = new jtextpane();         tenderedtextpane.setbounds(197, 111, 173, 45);         contentpane.add(tenderedtextpane);          jtextpane changetextpane = new jtextpane();         changetextpane.setbounds(197, 177, 173, 45);         contentpane.add(changetextpane);          jpanel panel = new jpanel();         panel.setbounds(26, 233, 383, 308);         contentpane.add(panel);         panel.setlayout(null);          jbutton jbt1 = new jbutton("1");         jbt1.setbounds(10, 11, 110, 51);         panel.add(jbt1);          jbutton jbt2 = new jbutton("2");         jbt2.setbounds(130, 11, 110, 51);         panel.add(jbt2);          jbutton jbt3 = new jbutton("3");         jbt3.setbounds(250, 11, 110, 51);         panel.add(jbt3);          jbutton jbt4 = new jbutton("4");         jbt4.setbounds(10, 73, 110, 51);         panel.add(jbt4);          jbutton jbt5 = new jbutton("5");         jbt5.setbounds(130, 73, 110, 51);         panel.add(jbt5);          jbutton jbt6 = new jbutton("6");         jbt6.setbounds(250, 73, 110, 51);         panel.add(jbt6);          jbutton jbt7 = new jbutton("7");         jbt7.setbounds(10, 135, 110, 51);         panel.add(jbt7);          jbutton jbt8 = new jbutton("8");         jbt8.setbounds(130, 135, 110, 51);         panel.add(jbt8);          jbutton jbt9 = new jbutton("9");         jbt9.setbounds(250, 135, 110, 51);         panel.add(jbt9);          jbutton jbtdel = new jbutton("del");         jbtdel.setfont(new font("tahoma", font.plain, 15));         jbtdel.setbounds(10, 197, 110, 51);         panel.add(jbtdel);          jbutton jbt0 = new jbutton("0");         jbt0.setbounds(130, 197, 110, 51);         panel.add(jbt0);          jbutton jbtpay = new jbutton("pay");         jbtpay.setfont(new font("tahoma", font.plain, 15));         jbtpay.setbounds(250, 197, 110, 51);         panel.add(jbtpay);          jbutton jbtdecpoint = new jbutton(".");         jbtdecpoint.setbounds(130, 259, 110, 46);         panel.add(jbtdecpoint);          font font = new font("tahoma", font.plain, 20);         tenderedtextpane.setfont(font);          // listeners calculate gui tendered tp         jbt1.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt1)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "1");                        }                    }                 });          jbt2.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt2)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "2");                        }                    }                 });          jbt3.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt3)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "3");                        }                    }                 });          jbt4.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt4)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "4");                        }                    }                 });          jbt5.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt5)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "5");                        }                    }                 });          jbt6.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt6)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "6");                        }                    }                 });          jbt7.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt7)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "7");                        }                    }                 });          jbt8.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt8)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "8");                        }                    }                 });          jbt9.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt9)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "9");                        }                    }                 });          jbt0.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbt0)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + "0");                        }                    }                 });           jbtdecpoint.addactionlistener(                 new actionlistener()                 {                    public void actionperformed(actionevent e)                    {                        if(e.getsource() == jbtdecpoint)                        {                            tenderedtextpane.settext(tenderedtextpane.gettext() + ".");                        }                    }                 });          jbtdel.addactionlistener(                   new actionlistener()                   {                       public void actionperformed(actionevent e)                       {                           if (e.getsource() == jbtdel)                           {                               tenderedtextpane.settext("");                            }                       }                   });  // total till should in totaltextpane when frame opens // want take total gui class @ point , work out change.  totaltextpane.settext(double.tostring(gettotal()));     jbtpay.addactionlistener(             new actionlistener()             {                 public void actionperformed(actionevent e)                 {                     if(e.getsource() == jbtpay)                     {                         component frame = null;                         joptionpane.showmessagedialog(frame, "order complete!");                     }                 }              });      }  }// end class


Comments

Post a Comment

Popular posts from this blog

commonjs - How to write a typescript definition file for a node module that exports a function? -

consider, toml node module can use: // toml.d.ts declare module toml { export function parse(value:string):any; } declare module "toml" { export = toml; } then: /// <reference path="../../../../../defs/toml/toml.d.ts"/> import toml = require('toml'); toml.parse(...); however, node module export single function, such 'glob' ( https://github.com/isaacs/node-glob ). the node usage of module be: var glob = require("glob") glob("*.js", {}, callback(err, files) { ... }); you'd naively expect this: // glob.d.ts declare function globs(paths:string, options:any, callback:{(err:any, files:string[]):void; ...but because typescripts 'import' semantics bit strange, seems can use 'import .. = require()' statement alias modules . trying call: /// <reference path="../../../../../defs/glob/glob.d.ts"/> import blog = require('glob'); results in: error ts2072: mod...
Read more

openid - Okta: Failed to get authorization code through API call -

i'm integrating okta own idp server using okta's api. i'm implementing authorization code flow following steps below: in own server, use /api/v1/authn endpoint sessiontoken. use sessiontoken obtain authorization calling endpoint: /oauth2/v1/authorize?client_id=" + clientid + "&sessiontoken=" + sessiontoken + "&response_type=code&response_mode=query&scope=openid&redirect_uri=" + redirecturl + "&state=evanyang&nonce=" it's supposed return response status code 302 , location header containing redirect url code value. however, keep getting response status code 200 , without location header, html body saying "you using unsupported browser." , "javascript disabled on browser." according api documentation: http://developer.okta.com/docs/api/resources/oidc.html#authentication-request , sessiontoken parameter sufficient this: an okta one-time sessiontoken. allows api-based ...
Read more

ios - Change Storyboard View using Seague -

i have following code checks connection server, , depending on want change views if no connection found. nsstring *connect = [nsstring stringwithcontentsofurl:[nsurl urlwithstring:@"http://myserver.com"] encoding:nsutf8stringencoding error:nil]; if (connect == null) { [self performseguewithidentifier:@"network_failure" sender:self]; } else { // other code here } my problem not change views. have added storyboard segue between 2 views identifier of network_failure . not have navigation controller or that, problem? thanks help! no not problem. first of all, in objectivec exists nil object oriented null . must use that. so: if(connect == nil) or better: if(!connect) so due fact nil not same of null , probably code does't enter in if scope . you have been able discover breakpoint. anyway: be sure set trigger segue (line) 2 view controller , , name network_failure (that not best name. should instead view1toview2 ) as, m...
Read more