1. ホーム
  2. 質問と答え
  3. Java AbstractTableModel：getValueAtは更新されたデータを使用しません

Java AbstractTableModel：getValueAtは更新されたデータを使用しません

2017-06-17 13 views
1

4つのカードパネルを持つJavaアプリケーションがあります。最初のパネルでは、2番目と3番目の地理的ポイントのデータを受け取ります.4番目のパネルでは、これらの3つのポイントについて抽出された情報を表示するJTableがあります。Java AbstractTableModel：getValueAtは更新されたデータを使用しません

次のコードを使用して、アプリケーションをコンパイルできます。各カードパネルで、JTextフィールドの横にあるボタンをクリックしてデータを追加します。

パッケージモデル

クラスAppSingleton

public class AppSingleton 
{ 
    private static AppSingleton instance = null; 

    public List<List<String>> flightPlanShared = new ArrayList<List<String>>(){{ 
    add(Arrays.asList("")); 
    add(Arrays.asList("")); 
    add(Arrays.asList("")); 
    }}; 

    private AppSingleton() 
    { 

    } 

    public static AppSingleton getInstance() 
    { 
    if(instance == null) 
    { 
     instance = new AppSingleton(); 
    } 
    return instance; 
    } 
}

クラスModel_Flightplan

import java.util.ArrayList; 
import java.util.List; 
import presenters.Presenter; 
import views.View_MainFrame; 

public class Model_Flightplan 
{ 
    AppSingleton appSingleton = AppSingleton.getInstance(); 
    private Presenter presenter; 
    private View_MainFrame viewMainFrame; 

    public Model_Flightplan(View_MainFrame viewMainFrame) 
    { 
     this.viewMainFrame = viewMainFrame; 
    } 

    public Presenter getPresenter() { 
     return presenter; 
    } 

    public void setPresenter(Presenter presenter) { 
     this.presenter = presenter; 
    } 

    public void addDepartureAirport() 
    {   
     List<String> component = new ArrayList<>(); 
     component.add("KLAS"); 
     component.add("KLAS"); 
     component.add("KLAS"); 

     appSingleton.flightPlanShared.set(0, component); 
    }           

    public void addDestinationAirport() 
    { 
     List<String> component = new ArrayList<>(); 
     component.add("KLAX"); 
     component.add("KLAX"); 
     component.add("KLAX"); 

     appSingleton.flightPlanShared.set((appSingleton.flightPlanShared.size() - 2), component); 
    } 

    public void addAlternateAirport() 
    { 
     List<String> component = new ArrayList<>(); 
     component.add("KSEA"); 
     component.add("KSEA"); 
     component.add("KSEA"); 

     appSingleton.flightPlanShared.set((appSingleton.flightPlanShared.size() - 1), component); 
    } 
}

クラスModel_TableWindsAloft

package models; 

import java.util.ArrayList; 
import java.util.List; 
import javax.swing.table.AbstractTableModel; 

public class Model_TableWindsAloft extends AbstractTableModel 
{ 

    String[] columnNames = {"ICAO","Name","Type"}; 

    private List<List<String>> tableData = new ArrayList<>(); 

    public Model_TableWindsAloft(List<List<String>> tableData) 
    { 
     this.tableData = tableData; 
     System.out.println("CONSTRUCTOR? "+tableData); 
    } 


    @Override 
    public int getRowCount() 
    { 
     System.out.println("DATA COUNT? "+tableData.size()); 
     return(tableData.size()); 
    } 

    @Override 
    public int getColumnCount() { 
     return(columnNames.length); 
    } 

    @Override 
    public String getColumnName(int column) 
    { 
     return columnNames[column] ; 
    } 

    @Override 
    public Object getValueAt(int rowIndex, int columnIndex) 
    { 
     System.out.println("WHAT IS DATA 1? "+tableData); 

     List<String> data = tableData.get(rowIndex); 

     System.out.println("WHAT IS DATA 2? "+data); 

     if(data.size()>=3) 
     { 
     switch(columnIndex) 
     { 
      case 0: 
       return data.get(0); 
      case 1: 
       return data.get(1); 
      case 2: 
       return data.get(2); 
      default: 
       return null; 
     } 
     } 
     else 
     { 
      return null; 
     } 
    } 
}

パッケージのプレゼンター

クラスプレゼンター

package presenters; 

import java.awt.CardLayout; 
import models.Model_Flightplan; 
import views.View_MainFrame; 

public class Presenter 
{ 
    private final View_MainFrame viewMainFrame; 
    private final Model_Flightplan model; 

    public Presenter(View_MainFrame viewMainFrame, Model_Flightplan model) 
    { 
    this.viewMainFrame = viewMainFrame; 
    this.model = model; 
    } 

    public void displayTabDep() 
    {    
    CardLayout card = (CardLayout)viewMainFrame.getPanelContext().getLayout(); 
    card.show(viewMainFrame.getPanelContext(), "cardDep"); 
    viewMainFrame.addButtonsFlightplan(); 
    viewMainFrame.btnPnlDeparture.setEnabled(false); 
    } 

    public void displayTabDest() 
    { 
    CardLayout card = (CardLayout)viewMainFrame.getPanelContext().getLayout(); 
    card.show(viewMainFrame.getPanelContext(), "cardDest"); 
    viewMainFrame.addButtonsFlightplan(); 
    viewMainFrame.btnPnlDestination.setEnabled(false); 
    } 

    public void displayTabAlt() 
    { 
    CardLayout card = (CardLayout)viewMainFrame.getPanelContext().getLayout(); 
    card.show(viewMainFrame.getPanelContext(), "cardAlt"); 
    viewMainFrame.addButtonsFlightplan(); 
    viewMainFrame.btnPnlAlternate.setEnabled(false); 
    } 

    public void displayTabWindsAloft() 
    { 
    CardLayout card = (CardLayout)viewMainFrame.getPanelContext().getLayout(); 
    card.show(viewMainFrame.getPanelContext(), "cardWindsAloft"); 

    viewMainFrame.addButtonsFlightplan(); 
    viewMainFrame.btnPnlWindsAloft.setEnabled(false); 

    viewMainFrame.createPanelWindsAloft(); 
    } 

    public void addDeparture() 
    { 
    model.addDepartureAirport(); 
    } 

    public void addDestination() 
    { 
    model.addDestinationAirport(); 
    } 

    public void addAlternate() 
    { 
    model.addAlternateAirport(); 
    } 
}

パッケージビュー

クラスView_MainFrame

package views; 

import java.awt.BorderLayout; 
import java.awt.Color; 
import java.awt.Dialog; 
import java.awt.Dimension; 
import java.awt.Font; 
import java.awt.event.ActionEvent; 
import java.awt.event.MouseAdapter; 
import java.awt.event.MouseEvent; 
import java.util.ArrayList; 
import java.util.List; 
import javax.swing.ImageIcon; 
import javax.swing.JButton; 
import javax.swing.JDialog; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JPanel; 
import javax.swing.JRootPane; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.JTextField; 
import javax.swing.SwingUtilities; 
import models.AppSingleton; 
import presenters.Presenter; 

public class View_MainFrame 
{ 
    AppSingleton appSingleton = AppSingleton.getInstance(); 
    private Presenter presenter; 
    private JPanel panelContext; 

    private JFrame frame; 

    public JPanel pnlDep; 
    public JPanel pnlDest; 
    public JPanel pnlAlt; 
    public JPanel pnlWindsAloft; 
    public JPanel panelButtons; 
    public JButton btnFlightplan; 
    public JPanel panelButtonsAdd; 
    public JButton btnFlightplanDummy; 
    public JPanel pnlDepAirport; 
    private JButton btnAddDep; 

    private javax.swing.JPanel pnlDestAirport; 
    public JButton btnAddDest; 

    private javax.swing.JPanel pnlAltAirport; 
    public JButton btnAddAlt; 

    private javax.swing.JPanel pnlWindsAloftInfo; 
    private javax.swing.JPanel pnlWindsAloftTable; 
    public JButton btnPnlDeparture; 
    public JButton btnPnlDestination; 
    public JButton btnPnlAlternate; 
    public JButton btnPnlWindsAloft; 

    public View_MainFrame() 
    { 
    createUI(); 
    } 

    private void createUI() 
    { 
    JFrame.setDefaultLookAndFeelDecorated(true); 
    frame = new JFrame("iGoDispatch IXEG Boeing-733"); 
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    frame.getContentPane().setLayout(new javax.swing.BoxLayout(frame.getContentPane(), javax.swing.BoxLayout.Y_AXIS)); 

    Dimension frameSize = new Dimension(1050,700); 
    Dimension frameSizeMin = new Dimension(500,200); 
    frame.setPreferredSize(frameSize); 
    frame.setMinimumSize(frameSizeMin); 

    createPanelButtons(); 
    createPanelButtonsAdd(); 
    createPanelDeparture(); 
    createPanelDestination(); 
    createPanelAlternate(); 
    pnlWindsAloft = new JPanel(); 
    pnlWindsAloft.setLayout(new java.awt.BorderLayout()); 
    createPanelWindsAloft(); 

    setPanelContext(new JPanel()); 
    getPanelContext().setLayout(new java.awt.CardLayout()); 
    frame.getContentPane().add(getPanelContext(), java.awt.BorderLayout.SOUTH); 

    getPanelContext().add(pnlDep, "cardDep"); 
    getPanelContext().add(pnlDest, "cardDest"); 
    getPanelContext().add(pnlAlt, "cardAlt"); 
    getPanelContext().add(pnlWindsAloft, "cardWindsAloft"); 

    frame.pack(); 
    frame.setVisible(true); 
    frame.setLocationRelativeTo(null); 
    } 

    public JPanel getPanelContext() { 
    return panelContext; 
    } 

    public void setPanelContext(JPanel panelContext) { 
    this.panelContext = panelContext; 
    } 

    private void createPanelButtons() 
    { 
    panelButtons = new JPanel(); 
    panelButtons.setBorder(new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED)); 
    panelButtons.setLayout(new java.awt.GridLayout(1, 0)); 
    Dimension panelButtonsMinSize = new Dimension(1050,60); 
    panelButtons.setMinimumSize(panelButtonsMinSize); 

    btnFlightplan = new JButton(); 
    btnFlightplan.setFont(new java.awt.Font("Lucida Grande", 1, 13)); // NOI18N 
    btnFlightplan.setText("Flightplan"); 
    btnFlightplan.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER); 
    btnFlightplan.setIconTextGap(5); 
    btnFlightplan.setMaximumSize(new java.awt.Dimension(70, 70)); 
    btnFlightplan.setMinimumSize(new java.awt.Dimension(70, 70)); 
    btnFlightplan.setPreferredSize(new java.awt.Dimension(70, 70)); 
    btnFlightplan.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM); 
    btnFlightplan.addActionListener((java.awt.event.ActionEvent evt) -> 
    { 
     getPresenter().displayTabDep(); 
    }); 
    panelButtons.add(btnFlightplan); 

    frame.getContentPane().add(panelButtons, java.awt.BorderLayout.NORTH); 
    } 

    private void createPanelButtonsAdd() 
    { 
    panelButtonsAdd = new JPanel(); 
    panelButtonsAdd.setBorder(javax.swing.BorderFactory.createEtchedBorder()); 
    frame.getContentPane().add(panelButtonsAdd, java.awt.BorderLayout.CENTER); 
    panelButtonsAdd.setLayout(new java.awt.FlowLayout(java.awt.FlowLayout.LEFT)); 

    // Dummy button 
    btnFlightplanDummy = new JButton(); 
    btnFlightplanDummy.setAlignmentY(0.0F); 
    btnFlightplanDummy.setEnabled(false); 
    btnFlightplanDummy.setVisible(false); 
    btnFlightplanDummy.setMaximumSize(new java.awt.Dimension(50, 50)); 
    btnFlightplanDummy.setMinimumSize(new java.awt.Dimension(50, 50)); 
    btnFlightplanDummy.setPreferredSize(new java.awt.Dimension(50, 50)); 
    panelButtonsAdd.add(btnFlightplanDummy); 

    addButtonsFlightplan(); 
    } 

    public void addButtonsFlightplan() 
    { 
    removeButtons(); 
    Dimension buttonDim = new Dimension(50, 50); 
    Font buttonFont = new Font("Helvetica", Font.PLAIN, 10); 
    btnPnlDeparture = new JButton("DEP"); 
    btnPnlDeparture.setPreferredSize(buttonDim); 
    btnPnlDeparture.setFont(buttonFont); 
    btnPnlDeparture.setVisible(true); 
    btnPnlDeparture.addActionListener((ActionEvent e) -> 
    { 
     getPresenter().displayTabDep(); 
    }); 

    panelButtonsAdd.add(btnPnlDeparture); 

    btnPnlDestination = new JButton("ARR"); 
    btnPnlDestination.setPreferredSize(buttonDim); 
    btnPnlDestination.setFont(buttonFont); 
    btnPnlDestination.setVisible(true); 
    btnPnlDestination.addActionListener((ActionEvent e) -> 
    { 
     getPresenter().displayTabDest(); 
    }); 
    panelButtonsAdd.add(btnPnlDestination); 

    btnPnlAlternate = new JButton("ALT"); 
    btnPnlAlternate.setPreferredSize(buttonDim); 
    btnPnlAlternate.setFont(buttonFont); 
    btnPnlAlternate.setVisible(true); 
    btnPnlAlternate.addActionListener((ActionEvent e) -> 
    { 
     getPresenter().displayTabAlt(); 
    }); 
    panelButtonsAdd.add(btnPnlAlternate); 

    btnPnlWindsAloft = new JButton("WINDS"); 
    btnPnlWindsAloft.setPreferredSize(buttonDim); 
    btnPnlWindsAloft.setFont(buttonFont); 
    btnPnlWindsAloft.setVisible(true); 
    btnPnlWindsAloft.addActionListener((ActionEvent e) -> 
    { 
     getPresenter().displayTabWindsAloft(); 
    }); 
    panelButtonsAdd.add(btnPnlWindsAloft); 

    panelButtonsAdd.revalidate(); 
    panelButtonsAdd.repaint(); 
    } 


    private void removeButtons() 
    { 
    panelButtonsAdd.removeAll(); 
    panelButtonsAdd.revalidate(); 
    panelButtonsAdd.repaint(); 
    } 

    private void createPanelDeparture() 
    { 
    java.awt.GridBagConstraints gridBagConstraints; 

    pnlDep = new JPanel(); 
    pnlDep.setLayout(new java.awt.BorderLayout()); 

    pnlDepAirport = new JPanel(); 
    pnlDepAirport.setLayout(new java.awt.GridBagLayout()); 

    btnAddDep = new JButton(); 
    btnAddDep.setText("ADD"); 
    btnAddDep.setMaximumSize(new java.awt.Dimension(35, 35)); 
    btnAddDep.setMinimumSize(new java.awt.Dimension(35, 35)); 
    btnAddDep.setPreferredSize(new java.awt.Dimension(35, 35)); 
    btnAddDep.addActionListener((java.awt.event.ActionEvent evt) -> 
    { 
     JFrame f = new JFrame(); 
     JDialog modalDialog = new JDialog(f, "Busy", Dialog.ModalityType.MODELESS); 
     modalDialog.setSize(200, 100); 
     modalDialog.setLocationRelativeTo(f); 
     modalDialog.setUndecorated(true); 
     // Remove menu buttons 
     modalDialog.getRootPane().setWindowDecorationStyle(JRootPane.NONE); 
     modalDialog.getContentPane().setBackground(Color.WHITE); 
     // Add rotating activity indicator 
     ImageIcon loading = new ImageIcon("src/images/activityIndicator.gif"); 
     modalDialog.add(new JLabel("Please wait... ", loading, JLabel.CENTER)); 
     // Set activity indicator visible 
     modalDialog.setVisible(true); 

     new Thread(() -> 
     { 
      getPresenter().addDeparture(); 
      SwingUtilities.invokeLater(() -> 
      { 
       modalDialog.setVisible(false); 
       modalDialog.dispose(); 
      }); 
     }).start(); 
    }); 
    gridBagConstraints = new java.awt.GridBagConstraints(); 
    gridBagConstraints.insets = new java.awt.Insets(5, 15, 5, 5); 
    pnlDepAirport.add(btnAddDep, gridBagConstraints); 

    pnlDep.add(pnlDepAirport); 
    } 

    private void createPanelDestination() 
    { 
    java.awt.GridBagConstraints gridBagConstraints; 

    pnlDest = new JPanel(); 
    pnlDest.setLayout(new java.awt.BorderLayout()); 

    pnlDestAirport = new javax.swing.JPanel(); 
    pnlDestAirport.setLayout(new java.awt.GridBagLayout()); 

    btnAddDest = new javax.swing.JButton(); 
    btnAddDest.setText("jButton1"); 
    btnAddDest.setMaximumSize(new java.awt.Dimension(35, 35)); 
    btnAddDest.setMinimumSize(new java.awt.Dimension(35, 35)); 
    btnAddDest.setPreferredSize(new java.awt.Dimension(35, 35)); 
    btnAddDest.addActionListener((java.awt.event.ActionEvent evt) -> 
    { 
     JFrame f = new JFrame(); 
     JDialog modalDialog = new JDialog(f, "Busy", Dialog.ModalityType.MODELESS); 
     modalDialog.setSize(200, 100); 
     modalDialog.setLocationRelativeTo(f); 
     modalDialog.setUndecorated(true); 
     // Remove menu buttons 
     modalDialog.getRootPane().setWindowDecorationStyle(JRootPane.NONE); 
     modalDialog.getContentPane().setBackground(Color.WHITE); 
     // Add rotating activity indicator 
     ImageIcon loading = new ImageIcon("src/images/activityIndicator.gif"); 
     modalDialog.add(new JLabel("Please wait... ", loading, JLabel.CENTER)); 
     // Set activity indicator visible 
     modalDialog.setVisible(true); 

     new Thread(() -> 
     { 
      getPresenter().addDestination(); 
      SwingUtilities.invokeLater(() -> 
      { 
       //displayValues(); 

       modalDialog.setVisible(false); 
       modalDialog.dispose(); 

      }); 
     }).start(); 
    }); 
    gridBagConstraints = new java.awt.GridBagConstraints(); 
    gridBagConstraints.insets = new java.awt.Insets(5, 15, 5, 5); 
    pnlDestAirport.add(btnAddDest, gridBagConstraints); 

    pnlDest.add(pnlDestAirport); 
    } 

    private void createPanelAlternate() 
    { 
    java.awt.GridBagConstraints gridBagConstraints; 

    pnlAlt = new JPanel(); 
    pnlAlt.setLayout(new java.awt.BorderLayout()); 

    pnlAltAirport = new JPanel(); 
    pnlAltAirport.setLayout(new java.awt.GridBagLayout()); 

    btnAddAlt = new JButton(); 
    btnAddAlt.setText("ADD"); 
    btnAddAlt.setMaximumSize(new java.awt.Dimension(35, 35)); 
    btnAddAlt.setMinimumSize(new java.awt.Dimension(35, 35)); 
    btnAddAlt.setPreferredSize(new java.awt.Dimension(35, 35)); 
    btnAddAlt.addActionListener((java.awt.event.ActionEvent evt) -> 
    { 
     JFrame f = new JFrame(); 
     JDialog modalDialog = new JDialog(f, "Busy", Dialog.ModalityType.MODELESS); 
     modalDialog.setSize(200, 100); 
     modalDialog.setLocationRelativeTo(f); 
     modalDialog.setUndecorated(true); 
     // Remove menu buttons 
     modalDialog.getRootPane().setWindowDecorationStyle(JRootPane.NONE); 
     modalDialog.getContentPane().setBackground(Color.WHITE); 
     // Add rotating activity indicator 
     ImageIcon loading = new ImageIcon("src/images/activityIndicator.gif"); 
     modalDialog.add(new JLabel("Please wait... ", loading, JLabel.CENTER)); 
     // Set activity indicator visible 
     modalDialog.setVisible(true); 

     new Thread(() -> 
     { 
      getPresenter().addAlternate(); 
      SwingUtilities.invokeLater(() -> 
      { 
       modalDialog.setVisible(false); 
       modalDialog.dispose(); 
      }); 
     }).start(); 
    }); 
    gridBagConstraints = new java.awt.GridBagConstraints(); 
    gridBagConstraints.insets = new java.awt.Insets(5, 15, 5, 5); 
    pnlAltAirport.add(btnAddAlt, gridBagConstraints); 

    pnlAlt.add(pnlAltAirport); 
    } 

    public void createPanelWindsAloft() 
    { 
    pnlWindsAloftInfo = new javax.swing.JPanel(); 
    pnlWindsAloftInfo.setLayout(new java.awt.GridLayout(1, 0)); 

    pnlWindsAloftTable = new javax.swing.JPanel(); 
    pnlWindsAloftTable.setLayout(new BorderLayout()); 

    javax.swing.JTable tblWindsAloft = new javax.swing.JTable(new Model_TableWindsAloft(createDataForWindsTable())); 

    JScrollPane scrollWindsAloft = new JScrollPane(tblWindsAloft,JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); 
    tblWindsAloft.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS); 
    tblWindsAloft.setFillsViewportHeight(true); 
    pnlWindsAloftTable.add(scrollWindsAloft, BorderLayout.CENTER); 

    pnlWindsAloftInfo.add(pnlWindsAloftTable); 
    pnlWindsAloft.add(pnlWindsAloftInfo, java.awt.BorderLayout.CENTER); 
    } 

    public List<List<String>> createDataForWindsTable() 
    { 
    List<List<String>> finalResult = new ArrayList<>(); 

    System.out.println("SIZE: "+finalResult.size()); 

    for (int i=0; i<appSingleton.flightPlanShared.size(); i++) 
    {  
     String icao; 
     String name; 
     String type; 

     if(appSingleton.flightPlanShared.get(i).size()>2) 
     { 
      icao = appSingleton.flightPlanShared.get(i).get(2); 
      name = appSingleton.flightPlanShared.get(i).get(1); 
      type = appSingleton.flightPlanShared.get(i).get(0); 
     } 
     else 
     { 
      icao = ""; 
      name = ""; 
      type = ""; 
     } 

      List<String> components = new ArrayList<>(); 

      components.add(icao); 
      components.add(name); 
      components.add(type); 

      System.out.println("COMPONENTS: "+components); 

      finalResult.add(components); 
    } 

    /* THIS WORKS! 
    String a1 = "LAS VEGAS/MC CARRAN "; 
    String a2 = "KLAS"; 
    String a3 = "PORTDEP"; 

    List<String> a = new ArrayList<>(); 
    a.add(a1); 
    a.add(a2); 
    a.add(a3); 

    String b1 = "LOS ANGELES INTL"; 
    String b2 = "KLAX"; 
    String b3 = "PORTDEST"; 
    List<String> b = new ArrayList<>(); 
    b.add(b1); 
    b.add(b2); 
    b.add(b3); 

    String c1 = "SEATTLE-TACOMA INTL"; 
    String c2 = "KSEA"; 
    String c3 = "PORTALT"; 
    List<String> c = new ArrayList<>(); 
    c.add(c1); 
    c.add(c2); 
    c.add(c3); 

    finalResult.add(a); 
    finalResult.add(b); 
    finalResult.add(c); 
    */ 

    System.out.println("DATA CREATED: "+finalResult); 

    return finalResult; 
    } 

    public Presenter getPresenter() { 
    return presenter; 
    } 

    public void setPresenter(Presenter presenter) { 
    this.presenter = presenter; 
    } 
}

メイン

package testjtable; 

import javax.swing.SwingUtilities; 
import models.Model_Flightplan; 
import presenters.Presenter; 
import views.View_MainFrame; 

public class TestJTable { 

    public static void main(String[] args) 
    { 
    SwingUtilities.invokeLater(() -> 
    { 
     View_MainFrame viewMainFrame = new View_MainFrame(); 
     viewMainFrame.setPresenter(new Presenter(viewMainFrame, new Model_Flightplan(viewMainFrame))); 
    }); 
    } 
}

（!!!）私がアプリケーションの外側をクリックしない限り、表の中にデータは表示されません。

EDIT：

私はのsetValueAt（）メソッドを使用してモデルを更新することで問題を解決：

@Override 
public void setValueAt(Object value, int row, int col) 
{ 
    setTableData(appSingleton.flightPlanShared); 
    fireTableCellUpdated(row, col);  
}

出典

2017-06-17 Igor Tupitsyn

+0

は、このコードのうち、[MCVE]小さなを作成し、あなたの質問とそれを掲示する検討してください。 –

+0

OK、元の質問を編集して、小さなサンプルアプリケーションをコンパイルするために使用できるコードを組み込みました。 –

答えて

2

あなたがそれぞれに、新しいJTableのと、それを保持している新しいJPanelの作成しているように見えますcreate winds aloftボタンを押してください。

public void displayTabWindsAloft() { 
    CardLayout card = (CardLayout) viewMainFrame.getPanelContext().getLayout(); 
    card.show(viewMainFrame.getPanelContext(), "cardWindsAloft"); 

    viewMainFrame.addButtonsFlightplan(); 
    viewMainFrame.btnPnlWindsAloft.setEnabled(false); 

    viewMainFrame.createPanelWindsAloft(); 
}

そして、この方法はviewMainFrame.createPanelWindsAloft();呼び出すことがわかります：それはgetPresenter().displayTabWindsAloft();を呼び出し

btnPnlWindsAloft.addActionListener((ActionEvent e) -> { 
    getPresenter().displayTabWindsAloft(); 
});

お知らせということである。

public void createPanelWindsAloft() { 
    pnlWindsAloftInfo = new javax.swing.JPanel(); 
    pnlWindsAloftInfo.setLayout(new java.awt.GridLayout(1, 0)); 

    pnlWindsAloftTable = new javax.swing.JPanel(); 
    pnlWindsAloftTable.setLayout(new BorderLayout()); 

    javax.swing.JTable tblWindsAloft = new javax.swing.JTable(
      new Model_TableWindsAloft(createDataForWindsTable())); 

    JScrollPane scrollWindsAloft = new JScrollPane(tblWindsAloft, 
      JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, 
      JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); 
    tblWindsAloft.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS); 
    tblWindsAloft.setFillsViewportHeight(true); 
    pnlWindsAloftTable.add(scrollWindsAloft, BorderLayout.CENTER); 

    pnlWindsAloftInfo.add(pnlWindsAloftTable); 
    pnlWindsAloft.add(pnlWindsAloftInfo, java.awt.BorderLayout.CENTER); 
}

をここで

は、あなたのbtnPnlWindsAloftのJButtonのActionListenerのです...そしていつもこのメソッドはcalですを呼び出して新しいテーブルモデルを埋め込む新しいtblWindsAloft JTableである新しいpnlWindsAloftTable JPanel、pnlWindsAloftInfo JPanelを作成します。繰り返しますが、これらのコンポーネントとモデルを不必要に再作成するのはなぜですか？

キーコンポーネントを一度しか作成せずにプログラムを実行している間は、JTableのモデルの状態と、それを保持する "カード" JPanelの可視性の状態を変更しますJTableは、JTableやモデルを再作成しないでください。その中にはデータを保持するものとそうでないものがあります。

また、あなたのプログラムの複雑さが不巨大であり、これは可能性の高い問題を見てからあなたを妨げている - リファクタリングと単にすべてを。

重要な問題：ほとんどのシステム（ボタンのテキストが...と表示されている私のシステムなど）では適切に表示されないことをほぼ保証するキーコンポーネントのサイズを設定しています。これも避けたいでしょう。あなたのコードの

私の現在のMCVE：最高のヘルプについて

import java.awt.BorderLayout; 
import java.awt.CardLayout; 
import java.awt.Color; 
import java.awt.Dialog; 
import java.awt.Dimension; 
import java.awt.Font; 
import java.awt.event.ActionEvent; 
import java.util.ArrayList; 
import java.util.Arrays; 
import java.util.List; 
import javax.swing.JButton; 
import javax.swing.JDialog; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JPanel; 
import javax.swing.JRootPane; 
import javax.swing.JScrollPane; 
import javax.swing.JTable; 
import javax.swing.SwingUtilities; 
import javax.swing.table.AbstractTableModel; 

public class TestJTable { 

    public static void main(String[] args) { 
     SwingUtilities.invokeLater(() -> { 
      View_MainFrame viewMainFrame = new View_MainFrame(); 
      viewMainFrame.setPresenter(
        new Presenter(viewMainFrame, new Model_Flightplan(viewMainFrame))); 
     }); 
    } 
} 

class View_MainFrame { 
    AppSingleton appSingleton = AppSingleton.getInstance(); 
    private Presenter presenter; 
    private JPanel panelContext; 

    private JFrame frame; 

    public JPanel pnlDep; 
    public JPanel pnlDest; 
    public JPanel pnlAlt; 
    public JPanel pnlWindsAloft; 
    public JPanel panelButtons; 
    public JButton btnFlightplan; 
    public JPanel panelButtonsAdd; 
    public JButton btnFlightplanDummy; 
    public JPanel pnlDepAirport; 
    private JButton btnAddDep; 

    private javax.swing.JPanel pnlDestAirport; 
    public JButton btnAddDest; 

    private javax.swing.JPanel pnlAltAirport; 
    public JButton btnAddAlt; 

    private javax.swing.JPanel pnlWindsAloftInfo; 
    private javax.swing.JPanel pnlWindsAloftTable; 
    public JButton btnPnlDeparture; 
    public JButton btnPnlDestination; 
    public JButton btnPnlAlternate; 
    public JButton btnPnlWindsAloft; 

    public View_MainFrame() { 
     createUI(); 
    } 

    private void createUI() { 
     JFrame.setDefaultLookAndFeelDecorated(true); 
     frame = new JFrame("iGoDispatch IXEG Boeing-733"); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     frame.getContentPane().setLayout(
       new javax.swing.BoxLayout(frame.getContentPane(), javax.swing.BoxLayout.Y_AXIS)); 

     Dimension frameSize = new Dimension(1050, 700); 
     Dimension frameSizeMin = new Dimension(500, 200); 
     frame.setPreferredSize(frameSize); 
     frame.setMinimumSize(frameSizeMin); 

     createPanelButtons(); 
     createPanelButtonsAdd(); 
     createPanelDeparture(); 
     createPanelDestination(); 
     createPanelAlternate(); 
     pnlWindsAloft = new JPanel(); 
     pnlWindsAloft.setLayout(new java.awt.BorderLayout()); 
     createPanelWindsAloft(); 

     setPanelContext(new JPanel()); 
     getPanelContext().setLayout(new java.awt.CardLayout()); 
     frame.getContentPane().add(getPanelContext(), java.awt.BorderLayout.SOUTH); 

     getPanelContext().add(pnlDep, "cardDep"); 
     getPanelContext().add(pnlDest, "cardDest"); 
     getPanelContext().add(pnlAlt, "cardAlt"); 
     getPanelContext().add(pnlWindsAloft, "cardWindsAloft"); 

     frame.pack(); 
     frame.setVisible(true); 
     frame.setLocationRelativeTo(null); 
    } 

    public JPanel getPanelContext() { 
     return panelContext; 
    } 

    public void setPanelContext(JPanel panelContext) { 
     this.panelContext = panelContext; 
    } 

    private void createPanelButtons() { 
     panelButtons = new JPanel(); 
     panelButtons.setBorder(
       new javax.swing.border.SoftBevelBorder(javax.swing.border.BevelBorder.RAISED)); 
     panelButtons.setLayout(new java.awt.GridLayout(1, 0)); 
     Dimension panelButtonsMinSize = new Dimension(1050, 60); 
     panelButtons.setMinimumSize(panelButtonsMinSize); 

     btnFlightplan = new JButton(); 
     btnFlightplan.setFont(new java.awt.Font("Lucida Grande", 1, 13)); 
     btnFlightplan.setText("Flightplan"); 
     btnFlightplan.setHorizontalTextPosition(javax.swing.SwingConstants.CENTER); 
     btnFlightplan.setIconTextGap(5); 
     btnFlightplan.setMaximumSize(new java.awt.Dimension(90, 70)); 
     btnFlightplan.setMinimumSize(new java.awt.Dimension(90, 70)); 
     btnFlightplan.setPreferredSize(new java.awt.Dimension(90, 70)); 
     btnFlightplan.setVerticalTextPosition(javax.swing.SwingConstants.BOTTOM); 
     btnFlightplan.addActionListener((java.awt.event.ActionEvent evt) -> { 
      getPresenter().displayTabDep(); 
     }); 
     panelButtons.add(btnFlightplan); 

     frame.getContentPane().add(panelButtons, java.awt.BorderLayout.NORTH); 
    } 

    private void createPanelButtonsAdd() { 
     panelButtonsAdd = new JPanel(); 
     panelButtonsAdd.setBorder(javax.swing.BorderFactory.createEtchedBorder()); 
     frame.getContentPane().add(panelButtonsAdd, java.awt.BorderLayout.CENTER); 
     panelButtonsAdd.setLayout(new java.awt.FlowLayout(java.awt.FlowLayout.LEFT)); 
     btnFlightplanDummy = new JButton(); 
     btnFlightplanDummy.setAlignmentY(0.0F); 
     btnFlightplanDummy.setEnabled(false); 
     btnFlightplanDummy.setVisible(false); 
     btnFlightplanDummy.setMaximumSize(new java.awt.Dimension(50, 50)); 
     btnFlightplanDummy.setMinimumSize(new java.awt.Dimension(50, 50)); 
     btnFlightplanDummy.setPreferredSize(new java.awt.Dimension(50, 50)); 
     panelButtonsAdd.add(btnFlightplanDummy); 

     addButtonsFlightplan(); 
    } 

    public void addButtonsFlightplan() { 
     removeButtons(); 
     Dimension buttonDim = new Dimension(150, 50); 
     Font buttonFont = new Font("Helvetica", Font.PLAIN, 10); 
     btnPnlDeparture = new JButton("DEP"); 
     btnPnlDeparture.setPreferredSize(buttonDim); 
     btnPnlDeparture.setFont(buttonFont); 
     btnPnlDeparture.setVisible(true); 
     btnPnlDeparture.addActionListener((ActionEvent e) -> { 
      getPresenter().displayTabDep(); 
     }); 

     panelButtonsAdd.add(btnPnlDeparture); 

     btnPnlDestination = new JButton("ARR"); 
     btnPnlDestination.setPreferredSize(buttonDim); 
     btnPnlDestination.setFont(buttonFont); 
     btnPnlDestination.setVisible(true); 
     btnPnlDestination.addActionListener((ActionEvent e) -> { 
      getPresenter().displayTabDest(); 
     }); 
     panelButtonsAdd.add(btnPnlDestination); 

     btnPnlAlternate = new JButton("ALT"); 
     btnPnlAlternate.setPreferredSize(buttonDim); 
     btnPnlAlternate.setFont(buttonFont); 
     btnPnlAlternate.setVisible(true); 
     btnPnlAlternate.addActionListener((ActionEvent e) -> { 
      getPresenter().displayTabAlt(); 
     }); 
     panelButtonsAdd.add(btnPnlAlternate); 

     btnPnlWindsAloft = new JButton("WINDS"); 
     btnPnlWindsAloft.setPreferredSize(buttonDim); 
     btnPnlWindsAloft.setFont(buttonFont); 
     btnPnlWindsAloft.setVisible(true); 
     btnPnlWindsAloft.addActionListener((ActionEvent e) -> { 
      getPresenter().displayTabWindsAloft(); 
     }); 
     panelButtonsAdd.add(btnPnlWindsAloft); 

     panelButtonsAdd.revalidate(); 
     panelButtonsAdd.repaint(); 
    } 

    private void removeButtons() { 
     panelButtonsAdd.removeAll(); 
     panelButtonsAdd.revalidate(); 
     panelButtonsAdd.repaint(); 
    } 

    private void createPanelDeparture() { 
     java.awt.GridBagConstraints gridBagConstraints; 

     pnlDep = new JPanel(); 
     pnlDep.setLayout(new java.awt.BorderLayout()); 

     pnlDepAirport = new JPanel(); 
     pnlDepAirport.setLayout(new java.awt.GridBagLayout()); 

     btnAddDep = new JButton(); 
     btnAddDep.setText("ADD"); 
     btnAddDep.setMaximumSize(new java.awt.Dimension(75, 35)); 
     btnAddDep.setMinimumSize(new java.awt.Dimension(75, 35)); 
     btnAddDep.setPreferredSize(new java.awt.Dimension(75, 35)); 
     btnAddDep.addActionListener((java.awt.event.ActionEvent evt) -> { 
      JFrame f = new JFrame(); 
      JDialog modalDialog = new JDialog(f, "Busy", Dialog.ModalityType.MODELESS); 
      modalDialog.setSize(200, 100); 
      modalDialog.setLocationRelativeTo(f); 
      modalDialog.setUndecorated(true); 
      modalDialog.getRootPane().setWindowDecorationStyle(JRootPane.NONE); 
      modalDialog.getContentPane().setBackground(Color.WHITE); 
      modalDialog.add(new JLabel("Please wait... ", JLabel.CENTER)); 
      modalDialog.setVisible(true); 

      new Thread(() -> { 
       getPresenter().addDeparture(); 
       SwingUtilities.invokeLater(() -> { 
        modalDialog.setVisible(false); 
        modalDialog.dispose(); 
       }); 
      }).start(); 
     }); 
     gridBagConstraints = new java.awt.GridBagConstraints(); 
     gridBagConstraints.insets = new java.awt.Insets(5, 15, 5, 5); 
     pnlDepAirport.add(btnAddDep, gridBagConstraints); 

     pnlDep.add(pnlDepAirport); 
    } 

    private void createPanelDestination() { 
     java.awt.GridBagConstraints gridBagConstraints; 

     pnlDest = new JPanel(); 
     pnlDest.setLayout(new java.awt.BorderLayout()); 

     pnlDestAirport = new javax.swing.JPanel(); 
     pnlDestAirport.setLayout(new java.awt.GridBagLayout()); 

     btnAddDest = new javax.swing.JButton(); 
     btnAddDest.setText("jButton1"); 
     btnAddDest.setMaximumSize(new java.awt.Dimension(75, 35)); 
     btnAddDest.setMinimumSize(new java.awt.Dimension(75, 35)); 
     btnAddDest.setPreferredSize(new java.awt.Dimension(75, 35)); 
     btnAddDest.addActionListener((java.awt.event.ActionEvent evt) -> { 
      JFrame f = new JFrame(); 
      JDialog modalDialog = new JDialog(f, "Busy", Dialog.ModalityType.MODELESS); 
      modalDialog.setSize(200, 100); 
      modalDialog.setLocationRelativeTo(f); 
      modalDialog.setUndecorated(true); 
      modalDialog.getRootPane().setWindowDecorationStyle(JRootPane.NONE); 
      modalDialog.getContentPane().setBackground(Color.WHITE); 
      modalDialog.add(new JLabel("Please wait... ", JLabel.CENTER)); 
      modalDialog.setVisible(true); 

      new Thread(() -> { 
       getPresenter().addDestination(); 
       SwingUtilities.invokeLater(() -> { 

        modalDialog.setVisible(false); 
        modalDialog.dispose(); 

       }); 
      }).start(); 
     }); 
     gridBagConstraints = new java.awt.GridBagConstraints(); 
     gridBagConstraints.insets = new java.awt.Insets(5, 15, 5, 5); 
     pnlDestAirport.add(btnAddDest, gridBagConstraints); 

     pnlDest.add(pnlDestAirport); 
    } 

    private void createPanelAlternate() { 
     java.awt.GridBagConstraints gridBagConstraints; 

     pnlAlt = new JPanel(); 
     pnlAlt.setLayout(new java.awt.BorderLayout()); 

     pnlAltAirport = new JPanel(); 
     pnlAltAirport.setLayout(new java.awt.GridBagLayout()); 

     btnAddAlt = new JButton(); 
     btnAddAlt.setText("ADD"); 
     btnAddAlt.setMaximumSize(new java.awt.Dimension(75, 35)); 
     btnAddAlt.setMinimumSize(new java.awt.Dimension(75, 35)); 
     btnAddAlt.setPreferredSize(new java.awt.Dimension(75, 35)); 
     btnAddAlt.addActionListener((java.awt.event.ActionEvent evt) -> { 
      JFrame f = new JFrame(); 
      JDialog modalDialog = new JDialog(f, "Busy", Dialog.ModalityType.MODELESS); 
      modalDialog.setSize(200, 100); 
      modalDialog.setLocationRelativeTo(f); 
      modalDialog.setUndecorated(true); 
      modalDialog.getRootPane().setWindowDecorationStyle(JRootPane.NONE); 
      modalDialog.getContentPane().setBackground(Color.WHITE); 
      modalDialog.add(new JLabel("Please wait... ", JLabel.CENTER)); 
      modalDialog.setVisible(true); 

      new Thread(() -> { 
       getPresenter().addAlternate(); 
       SwingUtilities.invokeLater(() -> { 
        modalDialog.setVisible(false); 
        modalDialog.dispose(); 
       }); 
      }).start(); 
     }); 
     gridBagConstraints = new java.awt.GridBagConstraints(); 
     gridBagConstraints.insets = new java.awt.Insets(5, 15, 5, 5); 
     pnlAltAirport.add(btnAddAlt, gridBagConstraints); 

     pnlAlt.add(pnlAltAirport); 
    } 

    public void createPanelWindsAloft() { 
     pnlWindsAloftInfo = new javax.swing.JPanel(); 
     pnlWindsAloftInfo.setLayout(new java.awt.GridLayout(1, 0)); 

     pnlWindsAloftTable = new javax.swing.JPanel(); 
     pnlWindsAloftTable.setLayout(new BorderLayout()); 

     javax.swing.JTable tblWindsAloft = new javax.swing.JTable(
       new Model_TableWindsAloft(createDataForWindsTable())); 

     JScrollPane scrollWindsAloft = new JScrollPane(tblWindsAloft, 
       JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, 
       JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED); 
     tblWindsAloft.setAutoResizeMode(JTable.AUTO_RESIZE_ALL_COLUMNS); 
     tblWindsAloft.setFillsViewportHeight(true); 
     pnlWindsAloftTable.add(scrollWindsAloft, BorderLayout.CENTER); 

     pnlWindsAloftInfo.add(pnlWindsAloftTable); 
     pnlWindsAloft.add(pnlWindsAloftInfo, java.awt.BorderLayout.CENTER); 
    } 

    public List<List<String>> createDataForWindsTable() { 
     List<List<String>> finalResult = new ArrayList<>(); 

     System.out.println("SIZE: " + finalResult.size()); 

     for (int i = 0; i < appSingleton.flightPlanShared.size(); i++) { 
      String icao; 
      String name; 
      String type; 

      if (appSingleton.flightPlanShared.get(i).size() > 2) { 
       icao = appSingleton.flightPlanShared.get(i).get(2); 
       name = appSingleton.flightPlanShared.get(i).get(1); 
       type = appSingleton.flightPlanShared.get(i).get(0); 
      } else { 
       icao = ""; 
       name = ""; 
       type = ""; 
      } 

      List<String> components = new ArrayList<>(); 

      components.add(icao); 
      components.add(name); 
      components.add(type); 

      System.out.println("COMPONENTS: " + components); 

      finalResult.add(components); 
     } 

     /* 
     * THIS WORKS! String a1 = "LAS VEGAS/MC CARRAN "; String a2 = "KLAS"; 
     * String a3 = "PORTDEP"; 
     * 
     * List<String> a = new ArrayList<>(); a.add(a1); a.add(a2); a.add(a3); 
     * 
     * String b1 = "LOS ANGELES INTL"; String b2 = "KLAX"; String b3 = 
     * "PORTDEST"; List<String> b = new ArrayList<>(); b.add(b1); b.add(b2); 
     * b.add(b3); 
     * 
     * String c1 = "SEATTLE-TACOMA INTL"; String c2 = "KSEA"; String c3 = 
     * "PORTALT"; List<String> c = new ArrayList<>(); c.add(c1); c.add(c2); 
     * c.add(c3); 
     * 
     * finalResult.add(a); finalResult.add(b); finalResult.add(c); 
     */ 

     System.out.println("DATA CREATED: " + finalResult); 

     return finalResult; 
    } 

    public Presenter getPresenter() { 
     return presenter; 
    } 

    public void setPresenter(Presenter presenter) { 
     this.presenter = presenter; 
    } 
} 

class Presenter { 
    private final View_MainFrame viewMainFrame; 
    private final Model_Flightplan model; 

    public Presenter(View_MainFrame viewMainFrame, Model_Flightplan model) { 
     this.viewMainFrame = viewMainFrame; 
     this.model = model; 
    } 

    public void displayTabDep() { 
     CardLayout card = (CardLayout) viewMainFrame.getPanelContext().getLayout(); 
     card.show(viewMainFrame.getPanelContext(), "cardDep"); 
     viewMainFrame.addButtonsFlightplan(); 
     viewMainFrame.btnPnlDeparture.setEnabled(false); 
    } 

    public void displayTabDest() { 
     CardLayout card = (CardLayout) viewMainFrame.getPanelContext().getLayout(); 
     card.show(viewMainFrame.getPanelContext(), "cardDest"); 
     viewMainFrame.addButtonsFlightplan(); 
     viewMainFrame.btnPnlDestination.setEnabled(false); 
    } 

    public void displayTabAlt() { 
     CardLayout card = (CardLayout) viewMainFrame.getPanelContext().getLayout(); 
     card.show(viewMainFrame.getPanelContext(), "cardAlt"); 
     viewMainFrame.addButtonsFlightplan(); 
     viewMainFrame.btnPnlAlternate.setEnabled(false); 
    } 

    public void displayTabWindsAloft() { 
     CardLayout card = (CardLayout) viewMainFrame.getPanelContext().getLayout(); 
     card.show(viewMainFrame.getPanelContext(), "cardWindsAloft"); 

     viewMainFrame.addButtonsFlightplan(); 
     viewMainFrame.btnPnlWindsAloft.setEnabled(false); 

     viewMainFrame.createPanelWindsAloft(); 
    } 

    public void addDeparture() { 
     model.addDepartureAirport(); 
    } 

    public void addDestination() { 
     model.addDestinationAirport(); 
    } 

    public void addAlternate() { 
     model.addAlternateAirport(); 
    } 
} 

class Model_TableWindsAloft extends AbstractTableModel { 

    String[] columnNames = { "ICAO", "Name", "Type" }; 

    private List<List<String>> tableData = new ArrayList<>(); 

    public Model_TableWindsAloft(List<List<String>> tableData) { 
     this.tableData = tableData; 
     System.out.println("CONSTRUCTOR? " + tableData); 
    } 

    @Override 
    public int getRowCount() { 
     System.out.println("DATA COUNT? " + tableData.size()); 
     return (tableData.size()); 
    } 

    @Override 
    public int getColumnCount() { 
     return (columnNames.length); 
    } 

    @Override 
    public String getColumnName(int column) { 
     return columnNames[column]; 
    } 

    @Override 
    public Object getValueAt(int rowIndex, int columnIndex) { 
     System.out.println("WHAT IS DATA 1? " + tableData); 

     List<String> data = tableData.get(rowIndex); 

     System.out.println("WHAT IS DATA 2? " + data); 

     if (data.size() >= 3) { 
      switch (columnIndex) { 
      case 0: 
       return data.get(0); 
      case 1: 
       return data.get(1); 
      case 2: 
       return data.get(2); 
      default: 
       return null; 
      } 
     } else { 
      return null; 
     } 
    } 
} 

class Model_Flightplan { 
    AppSingleton appSingleton = AppSingleton.getInstance(); 
    private Presenter presenter; 
    private View_MainFrame viewMainFrame; 

    public Model_Flightplan(View_MainFrame viewMainFrame) { 
     this.viewMainFrame = viewMainFrame; 
    } 

    public Presenter getPresenter() { 
     return presenter; 
    } 

    public void setPresenter(Presenter presenter) { 
     this.presenter = presenter; 
    } 

    public void addDepartureAirport() { 
     List<String> component = new ArrayList<>(); 
     component.add("KLAS"); 
     component.add("KLAS"); 
     component.add("KLAS"); 

     appSingleton.flightPlanShared.set(0, component); 
    } 

    public void addDestinationAirport() { 
     List<String> component = new ArrayList<>(); 
     component.add("KLAX"); 
     component.add("KLAX"); 
     component.add("KLAX"); 

     appSingleton.flightPlanShared.set((appSingleton.flightPlanShared.size() - 2), component); 
    } 

    public void addAlternateAirport() { 
     List<String> component = new ArrayList<>(); 
     component.add("KSEA"); 
     component.add("KSEA"); 
     component.add("KSEA"); 

     appSingleton.flightPlanShared.set((appSingleton.flightPlanShared.size() - 1), component); 
    } 
} 

class AppSingleton { 
    private static AppSingleton instance = null; 

    public List<List<String>> flightPlanShared = new ArrayList<List<String>>() { 
     { 
      add(Arrays.asList("")); 
      add(Arrays.asList("")); 
      add(Arrays.asList("")); 
     } 
    }; 

    private AppSingleton() { 

    } 

    public static AppSingleton getInstance() { 
     if (instance == null) { 
      instance = new AppSingleton(); 
     } 
     return instance; 
    } 
}

出典

2017-06-17 21:47:44

+0

ありがとうございます！ 1）プレゼンターの 'displayTabWindsAloft（）'から 'viewMainFrame.createPanelWindsAloft（）;'を削除しました。今、JTableは1回だけ作成されます。私はまた、テーブルモデルのコンストラクタから渡すデータを削除しました。 2）テーブルを更新するために 'viewMainFrame.tblWindsAloft.getModel（）.setValueAt（" DEP "、0,1）;をaddDeparture（）で追加しました。問題はまだ残っていて、テーブルは更新されていません... –

+0

@IgorTupitsyn：あなたの質問を編集し、最新の[mcve]を投稿してください（上記の私の記事を参照してコードのフォーマットを見てください。 –

+0

@IgorTupitsyn：現在表示されているプログラムはJTableに何を追加していますか？私は何も追加していませんが、それは私には分かりません。空データ... –

関連する問題

 関連する問題