Pomoc oko ispravka koda-kalkulator

[ DavorPro @ 11.02.2007. 17:45 ] @

Postovani forumasi i programeri molim za malo pomoci napravio sam kalkulator u GUI i on je funkcionalan a drugi sam radio
rucno no on ne radi pa ako neko zna di sam pogrijesio molim da mi pomogne a ujedno da to zajedno podjelimo sa svim ostalima. Prvi dio koda je iz GUI a drugi je rucno pisan kod.

Kalkulator:

Code:

import com.sun.org.apache.bcel.internal.verifier.statics.DOUBLE_Upper;
import javax.swing.JButton;
import javax.swing.SwingUtilities;
import java.awt.*;
import java.awt.Event.*;
/*
* Kalkulator.java
*
* Created on 2007. siječanj 30, 20:21
*/

/**
*
* @author Davor
*/
public class Kalkulator extends javax.swing.JFrame {

 enum Operacija{Plus,Minus,Puta,Podjeljeno,Jednako,Nista}
 Operacija operacija=Operacija.Nista;
 Double prviBroj;
 Double drugiBroj;





 /** Creates new form Kalkulator */
 public Kalkulator() {

 initComponents();
 this.setTitle("Kalkulator");
 DISPLEJ.setEditable(false);
 DISPLEJ.setText("0");
 setVisible(true);
 this.repaint();// da ponovno ispise
 }

 /** This method is called from within the constructor to
 * initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is
 * always regenerated by the Form Editor.
 */
 // <editor-fold defaultstate="collapsed" desc=" Generated Code ">
 private void initComponents() {
 DISPLEJ = new javax.swing.JTextField();
 jedan = new javax.swing.JButton();
 dva = new javax.swing.JButton();
 tri = new javax.swing.JButton();
 sedam = new javax.swing.JButton();
 sest = new javax.swing.JButton();
 pet = new javax.swing.JButton();
 cetri = new javax.swing.JButton();
 osam = new javax.swing.JButton();
 zarez = new javax.swing.JButton();
 tocka = new javax.swing.JButton();
 nula = new javax.swing.JButton();
 devet = new javax.swing.JButton();
 plus = new javax.swing.JButton();
 minus = new javax.swing.JButton();
 puta = new javax.swing.JButton();
 podljeljeno = new javax.swing.JButton();
 jLabel1 = new javax.swing.JLabel();
 brise = new javax.swing.JButton();
 BACKSPACE = new javax.swing.JButton();
 jednako = new javax.swing.JButton();
 MC = new javax.swing.JButton();
 MS = new javax.swing.JButton();
 MR = new javax.swing.JButton();
 MPlus = new javax.swing.JButton();
 labelaMemorija = new javax.swing.JLabel();
 sqrt = new javax.swing.JButton();
 jedanKroz = new javax.swing.JButton();
 plusMinus = new javax.swing.JButton();
 postotak = new javax.swing.JButton();

 setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
 DISPLEJ.setBackground(new java.awt.Color(0, 0, 0));
 DISPLEJ.setFont(new java.awt.Font("Arial Black", 1, 18));
 DISPLEJ.setForeground(new java.awt.Color(51, 255, 0));
 DISPLEJ.setHorizontalAlignment(javax.swing.JTextField.RIGHT);
 DISPLEJ.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 DISPLEJActionPerformed(evt);
 }
 });

 jedan.setText("1");
 jedan.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 jedanActionPerformed(evt);
 }
 });

 dva.setText("2");
 dva.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 dvaActionPerformed(evt);
 }
 });

 tri.setText("3");
 tri.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 triActionPerformed(evt);
 }
 });

 sedam.setText("7");
 sedam.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 sedamActionPerformed(evt);
 }
 });

 sest.setText("6");
 sest.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 sestActionPerformed(evt);
 }
 });

 pet.setText("5");
 pet.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 petActionPerformed(evt);
 }
 });

 cetri.setText("4");
 cetri.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 cetriActionPerformed(evt);
 }
 });

 osam.setText("8");
 osam.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 osamActionPerformed(evt);
 }
 });

 zarez.setForeground(new java.awt.Color(255, 51, 51));
 zarez.setText(",");
 zarez.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 zarezActionPerformed(evt);
 }
 });

 tocka.setForeground(new java.awt.Color(255, 51, 51));
 tocka.setText(".");
 tocka.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 tockaActionPerformed(evt);
 }
 });

 nula.setText("0");
 nula.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 nulaActionPerformed(evt);
 }
 });

 devet.setText("9");
 devet.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 devetActionPerformed(evt);
 }
 });

 plus.setForeground(new java.awt.Color(255, 51, 51));
 plus.setText("+");
 plus.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 plusActionPerformed(evt);
 }
 });

 minus.setForeground(new java.awt.Color(255, 51, 51));
 minus.setText("-");
 minus.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 minusActionPerformed(evt);
 }
 });

 puta.setForeground(new java.awt.Color(255, 51, 51));
 puta.setText("*");
 puta.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 putaActionPerformed(evt);
 }
 });

 podljeljeno.setForeground(new java.awt.Color(255, 0, 51));
 podljeljeno.setText("/");
 podljeljeno.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 podljeljenoActionPerformed(evt);
 }
 });

 jLabel1.setForeground(new java.awt.Color(0, 0, 102));
 jLabel1.setText("CASIO");

 brise.setForeground(new java.awt.Color(51, 255, 0));
 brise.setText("c");
 brise.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 briseActionPerformed(evt);
 }
 });

 BACKSPACE.setText("BACKSPACE");
 BACKSPACE.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 BACKSPACEActionPerformed(evt);
 }
 });

 jednako.setForeground(new java.awt.Color(51, 51, 255));
 jednako.setText("=");
 jednako.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 jednakoActionPerformed(evt);
 }
 });

 MC.setForeground(new java.awt.Color(255, 0, 0));
 MC.setText("MC");
 MC.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 MCActionPerformed(evt);
 }
 });

 MS.setForeground(new java.awt.Color(255, 51, 51));
 MS.setText("MS");
 MS.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 MSActionPerformed(evt);
 }
 });

 MR.setForeground(new java.awt.Color(255, 51, 51));
 MR.setText("MR");
 MR.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 MRActionPerformed(evt);
 }
 });

 MPlus.setForeground(new java.awt.Color(255, 51, 51));
 MPlus.setText("M+");
 MPlus.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 MPlusActionPerformed(evt);
 }
 });

 labelaMemorija.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
 labelaMemorija.setText("0");
 labelaMemorija.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

 sqrt.setForeground(new java.awt.Color(51, 255, 0));
 sqrt.setText("sqrt");
 sqrt.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 sqrtActionPerformed(evt);
 }
 });

 jedanKroz.setForeground(new java.awt.Color(51, 255, 0));
 jedanKroz.setText("1/x");
 jedanKroz.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 jedanKrozActionPerformed(evt);
 }
 });

 plusMinus.setForeground(new java.awt.Color(51, 255, 0));
 plusMinus.setText("+/-");
 plusMinus.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 plusMinusActionPerformed(evt);
 }
 });

 postotak.setForeground(new java.awt.Color(102, 255, 0));
 postotak.setText("%");
 postotak.addActionListener(new java.awt.event.ActionListener() {
 public void actionPerformed(java.awt.event.ActionEvent evt) {
 postotakActionPerformed(evt);
 }
 });

 org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
 getContentPane().setLayout(layout);
 layout.setHorizontalGroup(
 layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
 .add(layout.createSequentialGroup()
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
 .add(layout.createSequentialGroup()
 .addContainerGap()
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
 .add(DISPLEJ, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 306, Short.MAX_VALUE)
 .add(layout.createSequentialGroup()
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
 .add(layout.createSequentialGroup()
 .add(jedan)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(dva)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(tri)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(cetri))
 .add(layout.createSequentialGroup()
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING, false)
 .add(org.jdesktop.layout.GroupLayout.LEADING, layout.createSequentialGroup()
 .add(devet)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(nula)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(tocka, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
 .add(org.jdesktop.layout.GroupLayout.LEADING, layout.createSequentialGroup()
 .add(pet)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(sest)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(sedam)))
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
 .add(zarez, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 39, Short.MAX_VALUE)
 .add(osam))))
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
 .add(sqrt, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 52, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
 .add(jedanKroz, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 52, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
 .add(plusMinus, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 52, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
 .add(25, 25, 25)
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING)
 .add(MC)
 .add(MS)
 .add(MR)))))
 .add(layout.createSequentialGroup()
 .addContainerGap()
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
 .add(layout.createSequentialGroup()
 .add(plus)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(podljeljeno)
 .add(6, 6, 6)
 .add(minus)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(puta)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(postotak, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 52, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
 .add(layout.createSequentialGroup()
 .add(labelaMemorija, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 42, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
 .add(18, 18, 18)
 .add(BACKSPACE)
 .add(30, 30, 30)
 .add(jednako, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 47, Short.MAX_VALUE)))
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 27, Short.MAX_VALUE)
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.TRAILING, false)
 .add(brise, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
 .add(MPlus, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)))
 .add(layout.createSequentialGroup()
 .add(128, 128, 128)
 .add(jLabel1)))
 .addContainerGap())
 );

 layout.linkSize(new java.awt.Component[] {minus, plus, podljeljeno, puta}, org.jdesktop.layout.GroupLayout.HORIZONTAL);

 layout.linkSize(new java.awt.Component[] {cetri, devet, dva, jedan, nula, osam, pet, sedam, sest, tocka, tri, zarez}, org.jdesktop.layout.GroupLayout.HORIZONTAL);

 layout.setVerticalGroup(
 layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
 .add(layout.createSequentialGroup()
 .add(jLabel1)
 .add(9, 9, 9)
 .add(DISPLEJ, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 43, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
 .add(jedan)
 .add(dva)
 .add(tri)
 .add(cetri)
 .add(MC)
 .add(sqrt))
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
 .add(pet)
 .add(sest)
 .add(sedam)
 .add(osam)
 .add(MS)
 .add(jedanKroz))
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
 .add(devet)
 .add(nula)
 .add(tocka)
 .add(zarez)
 .add(MR)
 .add(plusMinus))
 .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
 .add(layout.createSequentialGroup()
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
 .add(MPlus)
 .add(postotak))
 .add(12, 12, 12)
 .add(brise))
 .add(layout.createSequentialGroup()
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
 .add(plus, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 40, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
 .add(podljeljeno, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 40, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
 .add(minus, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 40, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
 .add(puta, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 40, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
 .add(15, 15, 15)
 .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
 .add(labelaMemorija, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 30, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
 .add(jednako, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 32, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
 .add(BACKSPACE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 33, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))))
 .addContainerGap(25, Short.MAX_VALUE))
 );

 layout.linkSize(new java.awt.Component[] {minus, plus, podljeljeno, puta}, org.jdesktop.layout.GroupLayout.VERTICAL);

 layout.linkSize(new java.awt.Component[] {cetri, devet, dva, jedan, nula, osam, pet, sedam, sest, tocka, tri, zarez}, org.jdesktop.layout.GroupLayout.VERTICAL);

 pack();
 }// </editor-fold>

 private void postotakActionPerformed(java.awt.event.ActionEvent evt) {
drugiBroj=Double.parseDouble(DISPLEJ.getText());
Double rezultat=(prviBroj*drugiBroj)/100;
DISPLEJ.setText(""+rezultat);
 }

 private void plusMinusActionPerformed(java.awt.event.ActionEvent evt) {
DISPLEJ.setText(""+(Double.parseDouble(DISPLEJ.getText())));
 }

 private void jedanKrozActionPerformed(java.awt.event.ActionEvent evt) {
Double rezultat=1/Double.parseDouble(DISPLEJ.getText());
DISPLEJ.setText(""+rezultat);
 }

 private void sqrtActionPerformed(java.awt.event.ActionEvent evt) {
Double rezultat = Math.sqrt(Double.parseDouble(DISPLEJ.getText()));
DISPLEJ.setText(""+rezultat);
 }

 private void MPlusActionPerformed(java.awt.event.ActionEvent evt) {
Double a= Double.parseDouble(DISPLEJ.getText());
Double b= Double.parseDouble(labelaMemorija.getText());
double rezultat=a+b;
labelaMemorija.setText(""+rezultat);
 }

 private void MCActionPerformed(java.awt.event.ActionEvent evt) {
labelaMemorija.setText("0");
 }

 private void MRActionPerformed(java.awt.event.ActionEvent evt) {
 DISPLEJ.setText(labelaMemorija.getText());
 }

 private void MSActionPerformed(java.awt.event.ActionEvent evt) {
labelaMemorija.setText(DISPLEJ.getText());
 }

 private void jednakoActionPerformed(java.awt.event.ActionEvent evt) {
 drugiBroj=Double.parseDouble(DISPLEJ.getText());
 Double rezultat= 0.0;

 switch(operacija){
 case Plus:
 rezultat=prviBroj+drugiBroj;
 break;

 case Minus:
 rezultat=prviBroj-drugiBroj;
 break;

 case Puta:
 rezultat=prviBroj*drugiBroj;
 break;

 case Podjeljeno:
 rezultat=prviBroj/drugiBroj;
 break;
 }
 DISPLEJ.setText(""+rezultat);

 }

 private void BACKSPACEActionPerformed(java.awt.event.ActionEvent evt) {
 if(DISPLEJ.getText().length()==1){

 DISPLEJ.setText("0");
 }else{
 DISPLEJ.setText(DISPLEJ.getText().substring(0,DISPLEJ.getText().length()-1));
 }
 }

 private void briseActionPerformed(java.awt.event.ActionEvent evt) {
 DISPLEJ.setText("0");
 }

 private void DISPLEJActionPerformed(java.awt.event.ActionEvent evt) {

 }

 private void podljeljenoActionPerformed(java.awt.event.ActionEvent evt) {
 operacija=Operacija.Podjeljeno;
 prviBroj=Double.parseDouble(DISPLEJ.getText());
 DISPLEJ.setText("0");
 }

 private void plusActionPerformed(java.awt.event.ActionEvent evt) {
 operacija=Operacija.Plus;
 prviBroj=Double.parseDouble(DISPLEJ.getText());
 DISPLEJ.setText("0");
 }

 private void putaActionPerformed(java.awt.event.ActionEvent evt) {
 operacija=Operacija.Puta;
 prviBroj=Double.parseDouble(DISPLEJ.getText());
 DISPLEJ.setText("0");
 }

 private void minusActionPerformed(java.awt.event.ActionEvent evt) {
operacija=Operacija.Minus;
 prviBroj=Double.parseDouble(DISPLEJ.getText());
 DISPLEJ.setText("0");
 }

 private void zarezActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void tockaActionPerformed(java.awt.event.ActionEvent evt) {
if(!DISPLEJ.getText().contains("."))DISPLEJ.setText(DISPLEJ.getText()+".");
 }

 private void nulaActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void devetActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void osamActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void sedamActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void sestActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void petActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void cetriActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void triActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void dvaActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void jedanActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }
 private void upisiBroj(java.awt.event.ActionEvent evt){
 if(DISPLEJ.getText().startsWith("0")&DISPLEJ.getText().length()==1){
 DISPLEJ.setText("");
 }
 JButton b=(JButton)evt.getSource(); // ovdije smo kastali
 String textDugmeta=b.getText();
 DISPLEJ.setText(DISPLEJ.getText()+textDugmeta);
 }
 /**
 * @param args the command line arguments
 */
 public static void main(String args[]) {
 Look.setLook(Look.windows);
 SwingUtilities.invokeLater(new Runnable() {
 public void run() {
 new Kalkulator();
 }
 });
 }

 // Variables declaration - do not modify
 private javax.swing.JButton BACKSPACE;
 private javax.swing.JTextField DISPLEJ;
 private javax.swing.JButton MC;
 private javax.swing.JButton MPlus;
 private javax.swing.JButton MR;
 private javax.swing.JButton MS;
 private javax.swing.JButton brise;
 private javax.swing.JButton cetri;
 private javax.swing.JButton devet;
 private javax.swing.JButton dva;
 private javax.swing.JLabel jLabel1;
 private javax.swing.JButton jedan;
 private javax.swing.JButton jedanKroz;
 private javax.swing.JButton jednako;
 private javax.swing.JLabel labelaMemorija;
 private javax.swing.JButton minus;
 private javax.swing.JButton nula;
 private javax.swing.JButton osam;
 private javax.swing.JButton pet;
 private javax.swing.JButton plus;
 private javax.swing.JButton plusMinus;
 private javax.swing.JButton podljeljeno;
 private javax.swing.JButton postotak;
 private javax.swing.JButton puta;
 private javax.swing.JButton sedam;
 private javax.swing.JButton sest;
 private javax.swing.JButton sqrt;
 private javax.swing.JButton tocka;
 private javax.swing.JButton tri;
 private javax.swing.JButton zarez;
 // End of variables declaration

}
----------------------------------------------------------
//ovo treba dodati u src

/*
* look.java
*
* Created on 2006. studeni 30, 11:07
*
*/

/**
*
* @author Danijel Jelenić
* @version 1.1
*/

import com.sun.java.swing.plaf.windows.WindowsLookAndFeel;
import javax.swing.*;
import java.awt.*;

public class look {

 public static final int windows = 0;
 public static final int unix = 1;
 public static final int java = 2;
 public static final int system = 3;

 /**
 * Stvara novu instancu look klase
 * Privatni konstruktor - ne dozvoljava stvaranje novog objekta
 */
 private look() {
 }

 public static com.sun.java.swing.plaf.motif.MotifLookAndFeel getUnixLook(){
 return new com.sun.java.swing.plaf.motif.MotifLookAndFeel();
 }

 public static com.sun.java.swing.plaf.windows.WindowsLookAndFeel getWindowsLook(){
 return new com.sun.java.swing.plaf.windows.WindowsLookAndFeel();
 }

 public static javax.swing.plaf.metal.MetalLookAndFeel getJavaLook(){
 return new javax.swing.plaf.metal.MetalLookAndFeel();
 }


 /**
 * Metoda koja postavlja izgled aplikacije
 * Primjer - 
 * look.setLook(look.windows);
 *
 * @param look int izgled prozora
 */
 public static void setLook(int look){
 try {
 switch(look){
 case 0:
 javax.swing.UIManager.setLookAndFeel(getWindowsLook());
 break;
 case 1:
 javax.swing.UIManager.setLookAndFeel(getUnixLook());
 break;
 case 2:
 javax.swing.UIManager.setLookAndFeel(getJavaLook());
 break;
 case 3:
 javax.swing.UIManager.setLookAndFeel(javax.swing.UIManager.getSystemLookAndFeelClassName());
 }
 }catch (Exception ex) {
 ex.printStackTrace();
 }
 }


 /**
 * Metoda koja postavlja izgled aplikacije sa parametrom trenutne forme
 * Primjer - 
 * look.setLook(this, look.windows);
 *
 * @param look int izgled prozora
 * @param frame JFrame forma na koju se odnosi promjena (ako se odnosi na trenutnu anda se predaje parametar this)
 */
 public static void setLook(JFrame frame, int look){
 setLook(look);
 SwingUtilities.updateComponentTreeUI(frame);
 }


 /** Postavlja formu u centar ekrana i podeąava joj ąirinu i visinu
 * @param window je prozor koji treba centrirati
 */
 public static void centerFrame(Window window){
 window.setBounds((int)GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint().getX()-window.getWidth()/2,(int)GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint().getY()-window.getHeight()/2,window.getWidth(),window.getHeight());
 }

 static void setLook(WindowsLookAndFeel windowsLookAndFeel) {
 throw new UnsupportedOperationException("Not yet implemented");
 }


}

------------------------------------------------------------------------
Rucno pisani kod.// Isto treba dodati u src Look.java od autora : D. Jelenic
-----------------------------------------------------------------------

Molim vas da ne obracate paznju na razmjestaj dugmica bitna je funkcionalnost
/*
*
*
* Created on 2007. siječanj 27, 17:56
*
* To change this template, choose Tools | Template Manager
* and open the template in the editor.
*/

/**
*
* @author Davor
*/
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.*;
import java.awt.*;
import java.awt.Event.*;

public class Calculator extends JFrame{


 enum Operacija{Plus,Minus,Puta,Podjeljeno,Jednako,Nista}
 Operacija operacija=Operacija.Nista;
 Double prviBroj;
 Double drugiBroj;



 JTextField display = new JTextField();
 JButton jedan = new JButton();
 JButton dva= new JButton();
 JButton tri= new JButton();
 JButton cetri= new JButton();
 JButton pet= new JButton();
 JButton sest= new JButton();
 JButton sedam= new JButton();
 JButton osam= new JButton();
 JButton devet= new JButton();
 JButton nula= new JButton();
 JButton plus= new JButton();
 JButton minus= new JButton();
 JButton podjeljeno= new JButton();
 JButton puta= new JButton();
 JButton jedanKrozX= new JButton();
 JButton sqrt= new JButton();
 JButton tocka= new JButton();
 JButton zarez= new JButton();
 JButton pMin= new JButton();
 JButton postotak= new JButton();
 JButton jednako= new JButton();
 JButton c= new JButton();
 JButton ce= new JButton();
 JButton memoriyC= new JButton();
 JButton memoryR= new JButton();
 JButton memoryS= new JButton();
 JButton memoryPlus= new JButton();
 JButton backSpace= new JButton();
 JLabel label= new JLabel();
 JLabel labelDva= new JLabel();

// display.addActionListener(new java.awt.event.ActionListener() {
// public void actionPerformed(java.awt.event.ActionEvent evt) {
// ActionPerformed(evt);
//


 public Calculator() {


 initComponents();
 this.setTitle("Kalkulator");
 display.setEditable(false);
 display.setText("0");
 setVisible(true);
 this.repaint();


 // inicirajKomponente.setOpaque(true);

 }

 public void initComponents(){
 this.setBounds(100,100,310,470);
 this.setTitle(" CALCULATOR XP");
 this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 this.getContentPane().setLayout(null);
 this.getContentPane().setBackground(Color.BLACK);



 this.getContentPane().add(display);
 display.setHorizontalAlignment(JLabel.RIGHT);
 display.setBackground(Color.BLUE);
 display.setForeground(Color.green);
 display.setBounds(10,40,275,30);
 display.setText("0");
 display.setFont(new Font("Arial",Font.BOLD,20));
 display.setEditable(false);
 this.repaint();

 this.getContentPane().add(jedan);
 this.getContentPane().add(dva);
 this.getContentPane().add(tri);
 this.getContentPane().add(cetri);
 this.getContentPane().add(pet);
 this.getContentPane().add(sest);
 this.getContentPane().add(sedam);
 this.getContentPane().add(osam);
 this.getContentPane().add(devet);
 this.getContentPane().add(nula);
 this.getContentPane().add(jednako);
 this.getContentPane().add(backSpace);
 this.getContentPane().add(plus);
 this.getContentPane().add(minus);
 this.getContentPane().add(podjeljeno);
 this.getContentPane().add(puta);
 this.getContentPane().add(ce);
 this.getContentPane().add(c);
 this.getContentPane().add(memoryS);
 this.getContentPane().add(memoryR);
 this.getContentPane().add(memoryPlus);
 this.getContentPane().add(jedanKrozX);
 this.getContentPane().add(tocka);
 this.getContentPane().add(zarez);
 this.getContentPane().add(sqrt);
 this.getContentPane().add( pMin);
 this.getContentPane().add(postotak);
 this.getContentPane().add(label);
 this.getContentPane().add(labelDva);

 jedan.setBounds(10,80,45,30);
 dva.setBounds(10,120,45,30);
 tri.setBounds(10,160,45,30);
 cetri.setBounds(10,200,45,30);
 pet.setBounds(10,240,45,30);
 sedam.setBounds(10,280,45,30);



 nula.setBounds(65,80,45,30);
 plus.setBounds(65,120,45,30);
 minus.setBounds(65,160,45,30);
 puta.setBounds(65,200,45,30);
 podjeljeno.setBounds(65,240,45,30);
 jednako.setBounds(65,280,100,30);


 devet.setBounds(120,80,45,30);
 sqrt.setBounds(120,120,45,30);
 tocka.setBounds(120,160,45,30);
 zarez.setBounds(120,200,45,30);
 backSpace.setBounds(120,240,45,30);



 memoryS.setBounds(230,80,55,30);
 memoryR.setBounds(230,120,55,30);
 memoryPlus.setBounds(230,160,55,30);
 jedanKrozX.setBounds(230,200,55,30);
 ce.setBounds(230,240,55,30);
 label.setBounds(230,280,55,30);

 sest.setBounds(175,80,45,30);
 osam.setBounds(175,120,45,30);
 postotak.setBounds(175,160,45,30);
 c.setBounds(175,200,45,30);

 labelDva.setBounds(10,400,230,20);
 labelDva.setText("ASUS");
 labelDva.setForeground(Color.RED);
 labelDva.setFont(new Font("Arial",Font.BOLD,40));
 labelDva.setHorizontalAlignment(JLabel.CENTER);

 label.setBackground(Color.green);
 label.setForeground(Color.RED);
 label.setHorizontalAlignment(JLabel.CENTER);
 label.setText("0");
 label.setFont(new Font("Arial",Font.BOLD,20));



 jednako.setText("=");
 osam.setText("8");
 ce.setText("CE");
 jedanKrozX.setText("1/x");
 memoryPlus.setText("M+");
 memoryR.setText("MR");
 memoryS.setText("MS");
 c.setText("C");
 backSpace.setText("BS");
 zarez.setText(",");
 tocka.setText(".");
 sqrt.setText("Sqrt");
 devet.setText("9");
 osam.setText("8");
 sedam.setText("7");
 sest.setText("6");
 pet.setText("5");
 cetri.setText("4");
 tri.setText("3");
 dva.setText("2");
 jedan.setText("1");
 nula.setText("0");
 plus.setText("+");
 minus.setText("-");
 podjeljeno.setText("/");
 postotak.setText("%");
 pMin.setText("+/-");
 puta.setText("*");
 jedan.setText("1");






 pack();
 this.setVisible(true);
 }
 private void postotakActionPerformed(java.awt.event.ActionEvent evt) {
drugiBroj=Double.parseDouble(display.getText());
Double rezultat=(prviBroj*drugiBroj)/100;
display.setText(""+rezultat);
 }

 private void plusMinusActionPerformed(java.awt.event.ActionEvent evt) {
display.setText(""+(Double.parseDouble(display.getText())));
 }

 private void jedanKrozActionPerformed(java.awt.event.ActionEvent evt) {
Double rezultat=1/Double.parseDouble(display.getText());
display.setText(""+rezultat);
 }

 private void sqrtActionPerformed(java.awt.event.ActionEvent evt) {
Double rezultat = Math.sqrt(Double.parseDouble(display.getText()));
display.setText(""+rezultat);
 }

 private void MPlusActionPerformed(java.awt.event.ActionEvent evt) {
Double a= Double.parseDouble(display.getText());
Double b= Double.parseDouble(label.getText());
double rezultat=a+b;
label.setText(""+rezultat);
 }

 private void MCActionPerformed(java.awt.event.ActionEvent evt) {
label.setText("0");
 }

 private void MRActionPerformed(java.awt.event.ActionEvent evt) {
 display.setText(label.getText());
 }

 private void MSActionPerformed(java.awt.event.ActionEvent evt) {
label.setText(display.getText());
 }

 private void jednakoActionPerformed(java.awt.event.ActionEvent evt) {
 drugiBroj=Double.parseDouble(display.getText());
 Double rezultat= 0.0;

 switch(operacija){
 case Plus:
 rezultat=prviBroj+drugiBroj;
 break;

 case Minus:
 rezultat=prviBroj-drugiBroj;
 break;

 case Puta:
 rezultat=prviBroj*drugiBroj;
 break;

 case Podjeljeno:
 rezultat=prviBroj/drugiBroj;
 break;
 }
 display.setText(""+rezultat);

 }

 private void BACKSPACEActionPerformed(java.awt.event.ActionEvent evt) {
 if(display.getText().length()==1){

 display.setText("0");
 }else{
 display.setText(display.getText().substring(0,display.getText().length()-1));
 }
 }

 private void briseActionPerformed(java.awt.event.ActionEvent evt) {
 display.setText("0");
 }

 private void DISPLEJActionPerformed(java.awt.event.ActionEvent evt) {

 }

 private void podljeljenoActionPerformed(java.awt.event.ActionEvent evt) {
 operacija=Operacija.Podjeljeno;
 prviBroj=Double.parseDouble(display.getText());
 display.setText("0");
 }

 private void plusActionPerformed(java.awt.event.ActionEvent evt) {
 operacija=Operacija.Plus;
 prviBroj=Double.parseDouble(display.getText());
 display.setText("0");
 }

 private void putaActionPerformed(java.awt.event.ActionEvent evt) {
 operacija=Operacija.Puta;
 prviBroj=Double.parseDouble(display.getText());
 display.setText("0");
 }

 private void minusActionPerformed(java.awt.event.ActionEvent evt) {
operacija=Operacija.Minus;
 prviBroj=Double.parseDouble(display.getText());
 display.setText("0");
 }

 private void zarezActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void tockaActionPerformed(java.awt.event.ActionEvent evt) {
if(!display.getText().contains("."))display.setText(display.getText()+".");
 }

 private void nulaActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void devetActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void osamActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void sedamActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void sestActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void petActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void cetriActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void triActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void dvaActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }

 private void jedanActionPerformed(java.awt.event.ActionEvent evt) {
 upisiBroj(evt);
 }
 private void upisiBroj(java.awt.event.ActionEvent evt){
 if(display.getText().startsWith("0")&display.getText().length()==1){
 display.setText("");
 }
 JButton b=(JButton)evt.getSource(); // ovdije smo kastali
 String textDugmeta=b.getText();
 display.setText(display.getText()+textDugmeta);
 }
 /**
 * @param args the command line arguments
 */
 public static void main(String args[]) {
 look.setLook(look.windows);
 SwingUtilities.invokeLater(new Runnable() {
 public void run() {
 new Calculator();
 }
 });
 }
}

_{[Ovu poruku je menjao hyle dana 12.02.2007. u 08:48 GMT+1]}