[NetBeans] Problem z wyswietlaniem gui

0

Witam, mam taki problem: tworze wlasnie gui do mojego przelicznika walut (projekt na studia). Wygenerowalam sobie z pomoca NetBeansa wszystkie okienka, ale w zaden sposob nie udaje mi sie ich wyswietlic przy uruchamianiu programu.

Sa tam 2 metody: getHandler(), aby okienko dzialalo jako Singleton i zwykly konstruktor Window() - probowalam w najrozniejszej konfiguracji uruchamiac to jedno, to drugie, ale dalej nie wiem w czym problem, moze ktos z Was go rozwiaze.

Kod jest dosyc dlugi, ale chodzi w sumie o te pierwsze metody.

package currencycalculator;

import javax.swing.JPanel;

/**
 * @author Lidia Kloc @ l33dek
 */

public class Window extends javax.swing.JPanel {

    public Window() {
        initComponents();
        setVisible(true);
    }

    public static void main(String[] args) {
        final Window gui = new Window();
        gui.setVisible(true);
    }

    public static Window getHandler () {
        if (windowHandler == null) {
            windowHandler = new Window();
        }
        return windowHandler;
    }

    public void setManager (Manager man) {
        if (this.manager == null)
            this.manager = new Manager();
        this.manager = man;
    }

    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {

        panel1 = new javax.swing.JPanel();
        jScrollPane1 = new javax.swing.JScrollPane();
        currencyList1 = new javax.swing.JList();
        jScrollPane2 = new javax.swing.JScrollPane();
        currencyList2 = new javax.swing.JList();
        jTextField1 = new javax.swing.JTextField();
        inputLabel = new javax.swing.JLabel();
        panel2 = new javax.swing.JPanel();
        actualizeButton = new javax.swing.JButton();
        calculateButton = new javax.swing.JButton();
        endButton = new javax.swing.JButton();
        panel3 = new javax.swing.JPanel();
        outputLabel = new javax.swing.JLabel();
        jScrollPane3 = new javax.swing.JScrollPane();
        jTextArea1 = new javax.swing.JTextArea();

        setBorder(javax.swing.BorderFactory.createTitledBorder("Przelicznik Walut"));
        setFocusable(false);

        panel1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        currencyList1.setModel(new javax.swing.AbstractListModel() {
            String[] strings = { "1", "2", "3", "4" };
            public int getSize() { return strings.length; }
            public Object getElementAt(int i) { return strings[i]; }
        });
        jScrollPane1.setViewportView(currencyList1);

        currencyList2.setModel(new javax.swing.AbstractListModel() {
            String[] strings = { "Item 1", "Item 2", "Item 3", "Item 4", "Item 5" };
            public int getSize() { return strings.length; }
            public Object getElementAt(int i) { return strings[i]; }
        });
        jScrollPane2.setViewportView(currencyList2);

        jTextField1.setText("jTextField1");
        jTextField1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField1ActionPerformed(evt);
            }
        });

        inputLabel.setText("Kwota:");

        javax.swing.GroupLayout panel1Layout = new javax.swing.GroupLayout(panel1);
        panel1.setLayout(panel1Layout);
        panel1Layout.setHorizontalGroup(
            panel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, panel1Layout.createSequentialGroup()
                .addContainerGap(22, Short.MAX_VALUE)
                .addGroup(panel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(inputLabel)
                    .addGroup(panel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                        .addComponent(jTextField1, javax.swing.GroupLayout.Alignment.TRAILING)
                        .addComponent(jScrollPane2, javax.swing.GroupLayout.Alignment.TRAILING)
                        .addComponent(jScrollPane1, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 186, Short.MAX_VALUE)))
                .addContainerGap())
        );
        panel1Layout.setVerticalGroup(
            panel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, panel1Layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 21, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(jScrollPane2, javax.swing.GroupLayout.PREFERRED_SIZE, 20, Short.MAX_VALUE)
                .addGap(18, 18, 18)
                .addComponent(inputLabel)
                .addGap(6, 6, 6)
                .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 27, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(59, 59, 59))
        );

        panel2.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        actualizeButton.setText("Aktualizuj Kursy");
        actualizeButton.addChangeListener(new javax.swing.event.ChangeListener() {
            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                actualizeButtonStateChanged(evt);
            }
        });
        actualizeButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                actualizeButtonActionPerformed(evt);
            }
        });

        calculateButton.setText("Przelicz");
        calculateButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                calculateButtonActionPerformed(evt);
            }
        });

        endButton.setText("Zakończ");
        endButton.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                endButtonActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout panel2Layout = new javax.swing.GroupLayout(panel2);
        panel2.setLayout(panel2Layout);
        panel2Layout.setHorizontalGroup(
            panel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(panel2Layout.createSequentialGroup()
                .addGap(41, 41, 41)
                .addGroup(panel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                    .addComponent(endButton, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(calculateButton, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(actualizeButton, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addGap(57, 57, 57))
        );
        panel2Layout.setVerticalGroup(
            panel2Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(panel2Layout.createSequentialGroup()
                .addGap(18, 18, 18)
                .addComponent(actualizeButton)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(calculateButton)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(endButton)
                .addContainerGap(26, Short.MAX_VALUE))
        );

        panel3.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0)));

        outputLabel.setFont(new java.awt.Font("Dialog", 1, 18));
        outputLabel.setText("Wynik:");

        jTextArea1.setColumns(10);
        jTextArea1.setEditable(false);
        jTextArea1.setFont(new java.awt.Font("Dialog", 0, 18)); // NOI18N
        jTextArea1.setLineWrap(true);
        jTextArea1.setRows(1);
        jTextArea1.setText("0,00");
        jScrollPane3.setViewportView(jTextArea1);

        javax.swing.GroupLayout panel3Layout = new javax.swing.GroupLayout(panel3);
        panel3.setLayout(panel3Layout);
        panel3Layout.setHorizontalGroup(
            panel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(panel3Layout.createSequentialGroup()
                .addGap(58, 58, 58)
                .addComponent(outputLabel, javax.swing.GroupLayout.PREFERRED_SIZE, 73, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(54, 54, 54)
                .addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, 251, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap(26, Short.MAX_VALUE))
        );
        panel3Layout.setVerticalGroup(
            panel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(panel3Layout.createSequentialGroup()
                .addGroup(panel3Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(panel3Layout.createSequentialGroup()
                        .addGap(27, 27, 27)
                        .addComponent(jScrollPane3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                    .addGroup(panel3Layout.createSequentialGroup()
                        .addContainerGap()
                        .addComponent(outputLabel, javax.swing.GroupLayout.DEFAULT_SIZE, 53, Short.MAX_VALUE)))
                .addContainerGap())
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.TRAILING)
                    .addComponent(panel3, javax.swing.GroupLayout.Alignment.LEADING, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(panel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                        .addComponent(panel2, javax.swing.GroupLayout.DEFAULT_SIZE, 230, Short.MAX_VALUE)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(panel2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                    .addComponent(panel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
                .addComponent(panel3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );
    }// </editor-fold>

    private void endButtonActionPerformed(java.awt.event.ActionEvent evt) {                                          
        return;
    }                                         

    private void calculateButtonActionPerformed(java.awt.event.ActionEvent evt) {                                                
        // TODO add your handling code here:
    }                                               

    private void actualizeButtonActionPerformed(java.awt.event.ActionEvent evt) {                                                
        // TODO add your handling code here:
    }                                               

    private void actualizeButtonStateChanged(javax.swing.event.ChangeEvent evt) {                                             
        // TODO add your handling code here:
    }                                            

    private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {
        String temp = jTextField1.getText();
        amount = Integer.decode(temp);
        System.out.println("amount changed: "+amount+"\n");
    }


    private static Window windowHandler;
    private Manager manager;

    private int amount = 0;
    // Variables declaration - do not modify
    private javax.swing.JButton actualizeButton;
    private javax.swing.JButton calculateButton;
    private javax.swing.JList currencyList1;
    private javax.swing.JList currencyList2;
    private javax.swing.JButton endButton;
    private javax.swing.JLabel inputLabel;
    private javax.swing.JScrollPane jScrollPane1;
    private javax.swing.JScrollPane jScrollPane2;
    private javax.swing.JScrollPane jScrollPane3;
    private javax.swing.JTextArea jTextArea1;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JLabel outputLabel;
    private javax.swing.JPanel panel1;
    private javax.swing.JPanel panel2;
    private javax.swing.JPanel panel3;
    // End of variables declaration

}

 
0

Cześć.
Jeśli już zdecydowałaś się na NetBeans, to nie kombinuj z singletonami ani niczym innym.
Po prostu sobie to wyklikaj. Albo przesiądź się na Eclipse i napisz gui, jak Pan Bóg przykazał.
Poza tym, po tych trzech metodach to widzę, że chyba powinnaś wydzielić to do modelu a nie przechowywać danych i tego managera w widoku...

Poza tym. Po co Ci singleton, skoro w metodzie main robisz new??

0

main'a dodałam tylko po to, aby testować gui bez wprawiania w ruch całego projektu, było tam też i wywołanie Singletona, ale sprawdzałam obie metody.

A z problemem wyświetlania już sobie poradziłam na szczęście.

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