顯示GUI的問題

我不太確定我在這裏做錯了什麼。該程序顯示在線餐廳訂購菜單。我還沒有寫出事件處理程序，但是我希望能夠看到什麼im 正在爲該程序工作。我把添加組件在一個名爲initComponents（）的方法但是我似乎無法在主要方法中調用它。顯示GUI的問題

這裏是其條款內容的代碼：

import javax.swing.*; 
    import javax.swing.JFrame; 
    import java.awt.*; 

    public class JameSimpsonP7 extends javax.swing.JPanel { 
    public static void main(String[] args){ 

     //Declare Food Objects 

     //Appitizers 
     Food artDuo = new Food("Artichoke Duo", 11.00, "A duo of fried artichoke hearts and cream cheese artichoke dip. Served with Ciabatta crisps. "); 
     Food shrimpCocktail = new Food("Jumbo Shrimp Cocktail", 12.00, "Large ice cold shrimp served in a martini glass served with our house marinara sauce "); 
     Food sliders = new Food("Kobe Sliders", 11.00, "Three bite sized kobe beef hamburgers served with french fries and house dill aioli."); 
     Food crabStack = new Food("Mango Crab Stack", 13.00, "A tower of mango, cream cheese, and freash crab served with ciabatta crisps."); 
     Food bisque = new Food("Tomato Bisque", 6.00, "A bowl of our famous house tomato bisque served with house made croutons."); 

     //Entree's 
     Food ribeye = new Food("Ribeye", 38.00, "Our succulent ribeye cut cooked to order. Served with a loaded baked potato and lobster mac and cheese."); 
     Food surfTurf = new Food("Surf and Turf", 42.00, "A combination of our house prime rib cut and lobster cooked to order. Served with yorkshire pudding."); 
     Food filet = new Food("Filet Mignon", 34.00, "Our house cut of filet mignon served with au jous and bacon and asperigus creamed corn."); 
     Food nyStrip = new Food("New York Strip", 35.00, "A 12 oz. New York Cut steak strip cooked to your specification. Served with yorkshire pudding."); 
     Food primeRib = new Food("Prime Rib", 29.00, "A 14 oz. cut of our prime rib. Cooked to your specification. Served with house potatoes."); 
     Food charShirmp = new Food("Charbroiled Shrimp", 28.00, "Five of our large house shrimp grilled and served with a sweet corn polenta and asperagus."); 
     Food halibut = new Food("Pan Seared Halibut", 34.00, "Freash caught halibut grilled and served with house vegetables and yorkshire pudding."); 
     Food scallops = new Food("Ancho Peanut Dusted Scallops", 34.00, "Scallops seasoned with ancho peanut dust, grilled, and served with bacon and asperagus creamed corn."); 
     Food romanChick = new Food("Roman Chicken", 24.00, "A grilled airline chicken breast served with a melange of house vegetables and sweet corn polenta."); 
     Food salmon = new Food("Cedar Plank Salmon", 30.00, "Salmon smoked with our Cedar wood and lemon zest, served with a light pasta with a lemon caper buerre blanc sauce."); 

     //Sides 
     Food lobMacChz = new Food("Lobster Mac and Cheese", 8.00, "House made macoroni and cheese served with 4 oz. of pure lobster meat."); 
     Food yorkPud = new Food("Yorkshire Pudding", 5.00, "A smoky pudding made with our house french bread and a smokey caper and pepper sauce."); 
     Food crmCorn = new Food("Bacon and Asperegus Creamed Corn", 6.00, "A melange of bacon and asperegus with our house made creamed corn."); 
     Food potatoes = new Food("Parmesean House Chive Potatoes", 5.00, "Our house mashed potatoes made with chives and parmesean cheese."); 

     //Desserts 
     Food chocCake = new Food("Chocolate Cake", 7.00, "An individual dark chocolate cake served with chocolate shavings and a chocolate fudge sauce."); 
     Food carrotCake = new Food("Carrot Cake", 7.00, "Carrot cake with a cream cheese frosting and a sugar carrot on top."); 
     Food strawShrtCak = new Food("Strawberry Short Cake", 7.00, "An American Classic! Shortbread soaked with strawberry sauce, topped with whipped cream, and stuffed with strawberries."); 
     Food tiramisu = new Food("Tiramisu", 6.00, "A classic espresso and kahlua soaked lady finger cake served with chocolate shavings."); 
     Food applePie = new Food("Stuffed Apple Pie", 5.00, "Our applle pie dumpling served with cinnamon dust and whipped cream."); 
     Food bananaCrm = new Food("Banana Cream Pie", 6.00, "An individual pie crust stuffed with banana slices, vanilla pudding, and topped with a mirangue cream."); 

     JameSimpsonP7 frame = new JameSimpsonP7(); 
     frame.initComponents(); 


    } 

    public JameSimpsonP7() { 
     initComponents(); 
    } 
    @SuppressWarnings("unchecked")      
    private void initComponents() { 

     northPanel = new javax.swing.JPanel(); 
     titleLabel = new javax.swing.JLabel(); 
     phoneNumLabel = new javax.swing.JLabel(); 
     westPanel = new javax.swing.JPanel(); 
     appitizerLabel = new javax.swing.JLabel(); 
     appitizerPane = new javax.swing.JScrollPane(); 
     appList = new javax.swing.JList(); 
     entreeLabel = new javax.swing.JLabel(); 
     entreePane = new javax.swing.JScrollPane(); 
     entreeList = new javax.swing.JList(); 
     dessertLabel = new javax.swing.JLabel(); 
     dessertPane = new javax.swing.JScrollPane(); 
     dessertList = new javax.swing.JList(); 
     southPanel = new javax.swing.JPanel(); 
     addToOrderButton = new javax.swing.JButton(); 
     eastPanel = new javax.swing.JPanel(); 
     yourOrderLabel = new javax.swing.JLabel(); 
     orderTextArea = new java.awt.TextArea(); 
     totalPanel = new javax.swing.JPanel(); 
     delivaryCheckBox = new javax.swing.JCheckBox(); 
     carryoutCheckBox = new javax.swing.JCheckBox(); 
     subTotalLabel = new javax.swing.JLabel(); 
     taxRateLabel = new javax.swing.JLabel(); 
     totalPriceLabel = new javax.swing.JLabel(); 
     calcButton = new javax.swing.JButton(); 
     centerPanel = new javax.swing.JPanel(); 
     detailPanel = new javax.swing.JPanel(); 
     detailLabel = new javax.swing.JLabel(); 
     detailTextArea = new java.awt.TextArea(); 
     specificationPanel = new javax.swing.JPanel(); 
     pricePanel = new javax.swing.JPanel(); 
     priceLabel = new javax.swing.JLabel(); 
     specificationLabel = new javax.swing.JLabel(); 
     specificationField = new java.awt.TextField(); 
     sidesPanel = new javax.swing.JPanel(); 
     sideLabel = new javax.swing.JLabel(); 
     buttonPanel = new javax.swing.JPanel(); 
     lobMacChzRadioButton = new javax.swing.JRadioButton(); 
     yorkPudRadioButton = new javax.swing.JRadioButton(); 
     baconAspRadioButton = new javax.swing.JRadioButton(); 
     parmPotRadioButton = new javax.swing.JRadioButton(); 

     setMaximumSize(new java.awt.Dimension(800, 600)); 
     setMinimumSize(new java.awt.Dimension(800, 600)); 
     setLayout(new java.awt.BorderLayout()); 

     northPanel.setBackground(new java.awt.Color(250, 0, 50)); 
     northPanel.setLayout(new java.awt.BorderLayout()); 

     titleLabel.setFont(new java.awt.Font("Trajan Pro", 1, 24)); // NOI18N 
     titleLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); 
     titleLabel.setText("James American Bistro"); 
     northPanel.add(titleLabel, java.awt.BorderLayout.CENTER); 

     phoneNumLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); 
     phoneNumLabel.setText("(405) 555-3213"); 
     northPanel.add(phoneNumLabel, java.awt.BorderLayout.PAGE_END); 

     add(northPanel, java.awt.BorderLayout.PAGE_START); 

     westPanel.setBackground(new java.awt.Color(255, 0, 50)); 
     westPanel.setMaximumSize(new java.awt.Dimension(260, 520)); 
     westPanel.setMinimumSize(new java.awt.Dimension(260, 520)); 
     westPanel.setPreferredSize(new java.awt.Dimension(260, 520)); 
     westPanel.setLayout(new java.awt.GridLayout(6, 1, 1, 1)); 

     appitizerLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 14)); 
     appitizerLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); 
     appitizerLabel.setText("Appitizers"); 
     westPanel.add(appitizerLabel); 

     appitizerPane.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); 

     appList.setModel(new javax.swing.AbstractListModel() { 
      String[] strings = { "Artichoke Duo", "Kobe Sliders", "Jumbo Shrimp Cocktail", "Mango Crab Stack", "Tomato Bisque", "" }; 
      public int getSize() { return strings.length; } 
      public Object getElementAt(int i) { return strings[i]; } 
     }); 
     appList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION); 
     appList.addListSelectionListener(new javax.swing.event.ListSelectionListener() { 
      public void valueChanged(javax.swing.event.ListSelectionEvent evt) { 
       appListValueChanged(evt); 
      } 
     }); 
     appitizerPane.setViewportView(appList); 

     westPanel.add(appitizerPane); 

     entreeLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 14)); 
     entreeLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); 
     entreeLabel.setText("Entrees"); 
     westPanel.add(entreeLabel); 

     entreePane.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); 

     entreeList.setModel(new javax.swing.AbstractListModel() { 
      String[] strings = { "Ribeye", "Surf and Turf", "Filet Mignon", "New York Strip", "Prime Rib", "Charbroiled Shrimp", "Pan Seared Halibut", "Ancho Peanut Dusted Scallops", "Roman Chicken", "Cedar Plank Salmon", " ", " " }; 
      public int getSize() { return strings.length; } 
      public Object getElementAt(int i) { return strings[i]; } 
     }); 
     entreeList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION); 
     entreeList.setToolTipText(""); 
     entreeList.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR)); 
     entreeList.addListSelectionListener(new javax.swing.event.ListSelectionListener() { 
      public void valueChanged(javax.swing.event.ListSelectionEvent evt) { 
       entreeListValueChanged(evt); 
      } 
     }); 
     entreePane.setViewportView(entreeList); 

     westPanel.add(entreePane); 

     dessertLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 14)); 
     dessertLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); 
     dessertLabel.setText("Deserts"); 
     westPanel.add(dessertLabel); 

     dessertPane.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER); 

     dessertList.setModel(new javax.swing.AbstractListModel() { 
      String[] strings = { "Chocolate Cake", "Carrot Cake", "Strawberry Shortcake", "Tiramisu", "Stuffed Apple Pie", "Banana Cream Pie", " " }; 
      public int getSize() { return strings.length; } 
      public Object getElementAt(int i) { return strings[i]; } 
     }); 
     dessertList.setSelectionMode(javax.swing.ListSelectionModel.SINGLE_SELECTION); 
     dessertList.addListSelectionListener(new javax.swing.event.ListSelectionListener() { 
      public void valueChanged(javax.swing.event.ListSelectionEvent evt) { 
       dessertListValueChanged(evt); 
      } 
     }); 
     dessertPane.setViewportView(dessertList); 

     westPanel.add(dessertPane); 

     add(westPanel, java.awt.BorderLayout.LINE_START); 

     southPanel.setBackground(new java.awt.Color(255, 0, 55)); 
     southPanel.setLayout(new java.awt.BorderLayout()); 

     addToOrderButton.setText("Add to Order"); 
     addToOrderButton.setToolTipText(""); 
     addToOrderButton.setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR)); 
     addToOrderButton.setDoubleBuffered(true); 
     addToOrderButton.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER); 
     addToOrderButton.setMaximumSize(new java.awt.Dimension(10, 25)); 
     addToOrderButton.setMinimumSize(new java.awt.Dimension(10, 25)); 
     addToOrderButton.setPreferredSize(new java.awt.Dimension(10, 25)); 
     addToOrderButton.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       addToOrderButtonActionPerformed(evt); 
      } 
     }); 
     southPanel.add(addToOrderButton, java.awt.BorderLayout.CENTER); 

     add(southPanel, java.awt.BorderLayout.PAGE_END); 

     eastPanel.setBackground(new java.awt.Color(255, 0, 50)); 
     eastPanel.setMaximumSize(new java.awt.Dimension(260, 520)); 
     eastPanel.setPreferredSize(new java.awt.Dimension(260, 520)); 
     eastPanel.setLayout(new javax.swing.BoxLayout(eastPanel, javax.swing.BoxLayout.Y_AXIS)); 

     yourOrderLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 14)); // NOI18N 
     yourOrderLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); 
     yourOrderLabel.setLabelFor(orderTextArea); 
     yourOrderLabel.setText("Your Order"); 
     eastPanel.add(yourOrderLabel); 

     orderTextArea.setEditable(false); 
     eastPanel.add(orderTextArea); 

     totalPanel.setBackground(new java.awt.Color(255, 0, 50)); 
     totalPanel.setLayout(new java.awt.GridLayout(6, 1)); 

     delivaryCheckBox.setBackground(new java.awt.Color(255, 0, 55)); 
     delivaryCheckBox.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 11)); 
     delivaryCheckBox.setText("Delivary - $4.00"); 
     delivaryCheckBox.setHorizontalAlignment(javax.swing.SwingConstants.LEFT); 
     delivaryCheckBox.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       delivaryCheckBoxActionPerformed(evt); 
      } 
     }); 
     totalPanel.add(delivaryCheckBox); 

     carryoutCheckBox.setBackground(new java.awt.Color(240, 0, 55)); 
     carryoutCheckBox.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 11)); // NOI18N 
     carryoutCheckBox.setText("Carryout - Free!"); 
     totalPanel.add(carryoutCheckBox); 

     subTotalLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 0, 11)); 
     subTotalLabel.setHorizontalAlignment(javax.swing.SwingConstants.LEFT); 
     subTotalLabel.setText("Sub Total :"); 
     totalPanel.add(subTotalLabel); 

     taxRateLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 0, 11)); 
     taxRateLabel.setHorizontalAlignment(javax.swing.SwingConstants.LEFT); 
     taxRateLabel.setText("Tax Rate : "); 
     totalPanel.add(taxRateLabel); 

     totalPriceLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 0, 11)); 
     totalPriceLabel.setHorizontalAlignment(javax.swing.SwingConstants.LEFT); 
     totalPriceLabel.setText("Total Price :"); 
     totalPanel.add(totalPriceLabel); 

     calcButton.setBackground(new java.awt.Color(255, 0, 55)); 
     calcButton.setText("Calculate"); 
     calcButton.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       calcButtonActionPerformed(evt); 
      } 
     }); 
     totalPanel.add(calcButton); 

     eastPanel.add(totalPanel); 

     add(eastPanel, java.awt.BorderLayout.LINE_END); 

     centerPanel.setBackground(new java.awt.Color(255, 255, 255)); 
     centerPanel.setMaximumSize(new java.awt.Dimension(370, 520)); 
     centerPanel.setPreferredSize(new java.awt.Dimension(370, 520)); 
     centerPanel.setLayout(new java.awt.GridLayout(3, 1)); 

     detailPanel.setBackground(new java.awt.Color(250, 250, 250)); 
     detailPanel.setLayout(new java.awt.BorderLayout()); 

     detailLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 11)); 
     detailLabel.setText("Details"); 
     detailPanel.add(detailLabel, java.awt.BorderLayout.LINE_START); 

     detailTextArea.setEditable(false); 
     detailPanel.add(detailTextArea, java.awt.BorderLayout.CENTER); 

     centerPanel.add(detailPanel); 

     specificationPanel.setBackground(new java.awt.Color(250, 250, 250)); 
     specificationPanel.setLayout(new java.awt.GridLayout(4, 1)); 

     pricePanel.setBackground(new java.awt.Color(250, 250, 250)); 
     pricePanel.setLayout(new java.awt.BorderLayout()); 

     priceLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 11)); 
     priceLabel.setText("Price:"); 
     pricePanel.add(priceLabel, java.awt.BorderLayout.LINE_START); 

     specificationPanel.add(pricePanel); 

     specificationLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 14)); 
     specificationLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER); 
     specificationLabel.setText("Specifications"); 
     specificationPanel.add(specificationLabel); 

     specificationField.setCursor(new java.awt.Cursor(java.awt.Cursor.TEXT_CURSOR)); 
     specificationField.addTextListener(new java.awt.event.TextListener() { 
      public void textValueChanged(java.awt.event.TextEvent evt) { 
       specificationFieldTextValueChanged(evt); 
      } 
     }); 
     specificationField.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       specificationFieldActionPerformed(evt); 
      } 
     }); 
     specificationPanel.add(specificationField); 
     specificationField.getAccessibleContext().setAccessibleDescription(""); 

     centerPanel.add(specificationPanel); 

     sidesPanel.setBackground(new java.awt.Color(250, 250, 250)); 
     sidesPanel.setLayout(new java.awt.BorderLayout()); 

     sideLabel.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 1, 11)); 
     sideLabel.setText("Add Sides"); 
     sidesPanel.add(sideLabel, java.awt.BorderLayout.LINE_START); 

     buttonPanel.setBackground(new java.awt.Color(250, 250, 250)); 

     lobMacChzRadioButton.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 0, 11)); 
     lobMacChzRadioButton.setText("Lobster Mac and Cheese - $8.00"); 
     lobMacChzRadioButton.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       lobMacChzRadioButtonActionPerformed(evt); 
      } 
     }); 
     buttonPanel.add(lobMacChzRadioButton); 

     yorkPudRadioButton.setFont(new java.awt.Font("Tw Cen MT Condensed Extra Bold", 0, 11)); 
     yorkPudRadioButton.setText("Yorkshire Pudding - $5.00"); 
     yorkPudRadioButton.addActionListener(new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       yorkPudRadioButtonActionPerformed(evt); 
      } 
     }); 
     buttonPanel.add(yorkPudRadioButton); 

     baconAspRadioButton.setFont(new java.awt.Font(
       "Tw Cen MT Condensed Extra Bold", 0, 11)); 
     baconAspRadioButton.setText(
       "Bacon and Asparagus Cream Corn - $6.00"); 
     baconAspRadioButton.addActionListener(
       new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       baconAspRadioButtonActionPerformed(evt); 
      } 
     }); 
     buttonPanel.add(baconAspRadioButton); 

     parmPotRadioButton.setFont(new java.awt.Font(
       "Tw Cen MT Condensed Extra Bold", 0, 11)); 
     parmPotRadioButton.setText("Parmesean House Chive Potatoes - $5.00"); 
     parmPotRadioButton.addActionListener(
       new java.awt.event.ActionListener() { 
      public void actionPerformed(java.awt.event.ActionEvent evt) { 
       parmPotRadioButtonActionPerformed(evt); 
      } 
     }); 
     buttonPanel.add(parmPotRadioButton); 

     sidesPanel.add(buttonPanel, java.awt.BorderLayout.CENTER); 

     centerPanel.add(sidesPanel); 

     add(centerPanel, java.awt.BorderLayout.CENTER); 
    }      



    //declare variables used in handlers 
    final double TAX_RATE = 2.9; 
    public double orderTotal; 
    public double [] yourOrderPrices = new double [10]; 
    public String [] yourOrderName = new String [10]; 
    public String details; 
    public double price; 



    //Handler Functions 
    private void calcButtonActionPerformed(java.awt.event.ActionEvent evt) {           
    }           

    private void delivaryCheckBoxActionPerformed(java.awt.event.ActionEvent evt) {  
     orderTotal += 4.00; 
    }             

    private void lobMacChzRadioButtonActionPerformed(java.awt.event.ActionEvent evt) {  
    }              

    private void specificationFieldActionPerformed(java.awt.event.ActionEvent evt) {  
    }             

    private void yorkPudRadioButtonActionPerformed(java.awt.event.ActionEvent evt) {             
    }             

    private void appListValueChanged(javax.swing.event.ListSelectionEvent evt) {          
     detailTextArea.setText("TEST"); 
    }          

    private void dessertListValueChanged(javax.swing.event.ListSelectionEvent evt) {           
     detailTextArea.setText("TEST"); 
    }           

    private void specificationFieldTextValueChanged(java.awt.event.TextEvent evt) {              
    }             

    private void addToOrderButtonActionPerformed(java.awt.event.ActionEvent evt) {             
    }             

    private void baconAspRadioButtonActionPerformed(java.awt.event.ActionEvent evt) {              
    }             

    private void parmPotRadioButtonActionPerformed(java.awt.event.ActionEvent evt) {             
    }             

    private void entreeListValueChanged(javax.swing.event.ListSelectionEvent evt) {           
    }          

    // GUI Componenet Declaration     
    private javax.swing.JButton addToOrderButton; 
    private javax.swing.JList appList; 
    private javax.swing.JLabel appitizerLabel; 
    private javax.swing.JScrollPane appitizerPane; 
    private javax.swing.JRadioButton baconAspRadioButton; 
    private javax.swing.JPanel buttonPanel; 
    private javax.swing.JButton calcButton; 
    private javax.swing.JCheckBox carryoutCheckBox; 
    private javax.swing.JPanel centerPanel; 
    private javax.swing.JCheckBox delivaryCheckBox; 
    private javax.swing.JLabel dessertLabel; 
    private javax.swing.JList dessertList; 
    private javax.swing.JScrollPane dessertPane; 
    private javax.swing.JLabel detailLabel; 
    private javax.swing.JPanel detailPanel; 
    private java.awt.TextArea detailTextArea; 
    private javax.swing.JPanel eastPanel; 
    private javax.swing.JLabel entreeLabel; 
    private javax.swing.JList entreeList; 
    private javax.swing.JScrollPane entreePane; 
    private javax.swing.JRadioButton lobMacChzRadioButton; 
    private javax.swing.JPanel northPanel; 
    private java.awt.TextArea orderTextArea; 
    private javax.swing.JRadioButton parmPotRadioButton; 
    private javax.swing.JLabel phoneNumLabel; 
    private javax.swing.JLabel priceLabel; 
    private javax.swing.JPanel pricePanel; 
    private javax.swing.JLabel sideLabel; 
    private javax.swing.JPanel sidesPanel; 
    private javax.swing.JPanel southPanel; 
    private java.awt.TextField specificationField; 
    private javax.swing.JLabel specificationLabel; 
    private javax.swing.JPanel specificationPanel; 
    private javax.swing.JLabel subTotalLabel; 
    private javax.swing.JLabel taxRateLabel; 
    private javax.swing.JLabel titleLabel; 
    private javax.swing.JPanel totalPanel; 
    private javax.swing.JLabel totalPriceLabel; 
    private javax.swing.JPanel westPanel; 
    private javax.swing.JRadioButton yorkPudRadioButton; 
    private javax.swing.JLabel yourOrderLabel; 

    //Food class handles food objects 
    private static class Food { 

     private String name; 
     private double price; 
     private String details; 

     public Food(String name, double price, String details) { 
      this.setName(name); 
      this.setPrice(price); 
      this.setDetails(details); 
     } 


     public String getName(){ 
      return name; 
     } 

     public void setName(String name){ 
      this.name = name; 
     } 

     public double getPrice(){ 
      return price; 
     } 

     public void setPrice(double price){ 
      this.price = price; 
     } 

     public String getDetails(){ 
      return details; 
     } 

     public void setDetails(String details){ 
      this.details = details; 
     } 
    } 
}

來源

2013-07-25 user2586809

你不應該需要從主方法中調用它，因爲它已經從構造 – MadProgrammer

這麼多的代碼中調用... –

您還沒有創建任何可顯示的窗口，如JFrame，其中可以顯示導出的JPanelJameSimpsonP7。同時調用JameSimpsonP7變量frame可能是您混淆的根源。

SwingUtilities.invokeLater(new Runnable() { 

    @Override 
    public void run() { 
     JameSimpsonP7 panel = new JameSimpsonP7(); 
     JFrame frame = new JFrame(); 
     frame.add(panel); 
     frame.pack(); 
     frame.setVisible(true); 
    } 
});

來源

2013-07-25 20:28:27 Reimeus

非常感謝你的幫助，我做了調整，我GUI終於運行。 – user2586809

你寫這個代碼的方式，呼籲frame.initComponents()是多餘的。這是因爲，在構建JameSimpsonP7對象，方法的initComponents已經調用，你可以在類的構造方法

public JameSimpsonP7() { 
    initComponents(); 
}

看到，因爲我不知道到底是什麼錯誤你得到（沒有說明在問題中），這是我注意到的唯一修復。

來源

2013-07-25 20:24:05

顯示GUI的問題

回答

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