IndexOutOfBoundsException: 0>=0 仅在使用 vector.removeAllElements() 时

Question

i got the following code:

    public void tryM(String...Zeilen) {
    DefaultTableModel model = new DefaultTableModel();
    table = new JTable();
    model.setColumnIdentifiers(Zeilen);
    table.setModel(model);
    table.setFillsViewportHeight(true);
    table.setDefaultEditor(Object.class, null);

    try {
        Class.forName(driverName);
        Connection con = DriverManager.getConnection(url, userName, password);
        sql = String.format("SELECT rezepte.id, rezepte.NAME, rezeptkategorien.KATNR, kategorien.BESCHREIBUNG\r\n" + "FROM rezepte inner JOIN rezeptkategorien ON rezeptkategorien.REZEPTID = rezepte.id\r\n" + "inner JOIN kategorien ON kategorien.ID = rezeptkategorien.KATNR\r\n" + "WHERE beschreibung=\"%s\"", textvalue);
        PreparedStatement ps = con.prepareStatement(sql);
        ResultSet rs = ps.executeQuery();
        Array test;
        int i = 0;
        int j =1;
        Vector<String> vector = new Vector<String>();
        while (rs.next()) {

            
            while(j!=Zeilen.length+1) {
                vector.add(rs.getString(j));
                j++;
                System.out.println(vector);
            }               
            model.addRow(vector);
            vector.removeAllElements();
            System.out.println(vector+" test");
            //System.out.println(rs.getString(2));
            i++;
            j=1;

        }

        if (i == 0) {
            amenak = true;
        }

    } catch(Exception ex) {
        JOptionPane.showMessageDialog(null, ex.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
    }

I am trying to add a variable amount of variables into the Vector "vector", then add it to the jtable, and clear it again to be filled again, according to my Print statements, the vector gets filled up and cleared perfectly fine. As soon its done and no more rows can be added, i get "IndexOutOfBounds 0>=0" when vector.removeAllElements() is removed, no error, but the result is not the wanted one.

Any idea why? Where is a index being looked for? Im kind of stumped.

Kind regards

edit error:

Exception in thread "AWT-EventQueue-0" java.lang.ArrayIndexOutOfBoundsException: 0 >= 0
at java.base/java.util.Vector.elementAt(Vector.java:466)
at java.desktop/javax.swing.table.DefaultTableModel.getValueAt(DefaultTableModel.java:661)
at java.desktop/javax.swing.JTable.getValueAt(JTable.java:2706)
at java.desktop/javax.swing.JTable.prepareRenderer(JTable.java:5724)
at java.desktop/javax.swing.plaf.basic.BasicTableUI.paintCell(BasicTableUI.java:2190)
at java.desktop/javax.swing.plaf.basic.BasicTableUI.paintCells(BasicTableUI.java:2092)
at java.desktop/javax.swing.plaf.basic.BasicTableUI.paint(BasicTableUI.java:1888)
at java.desktop/javax.swing.plaf.ComponentUI.update(ComponentUI.java:161)
at java.desktop/javax.swing.JComponent.paintComponent(JComponent.java:797)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1074)
at java.desktop/javax.swing.JComponent.paintChildren(JComponent.java:907)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1083)
at java.desktop/javax.swing.JViewport.paint(JViewport.java:737)
at java.desktop/javax.swing.JComponent.paintChildren(JComponent.java:907)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1083)
at java.desktop/javax.swing.JComponent.paintChildren(JComponent.java:907)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1083)
at java.desktop/javax.swing.JComponent.paintChildren(JComponent.java:907)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1083)
at java.desktop/javax.swing.JLayeredPane.paint(JLayeredPane.java:586)
at java.desktop/javax.swing.JComponent.paintChildren(JComponent.java:907)
at java.desktop/javax.swing.JComponent.paintToOffscreen(JComponent.java:5262)
at java.desktop/javax.swing.RepaintManager$PaintManager.paintDoubleBufferedImpl(RepaintManager.java:1643)
at java.desktop/javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1618)
at java.desktop/javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1556)
at java.desktop/javax.swing.RepaintManager.paint(RepaintManager.java:1323)
at java.desktop/javax.swing.JComponent.paint(JComponent.java:1060)
at java.desktop/java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:39)
at java.desktop/sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:75)
at java.desktop/sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:112)
at java.desktop/java.awt.Container.paint(Container.java:2002)
at java.desktop/java.awt.Window.paint(Window.java:3928)
at java.desktop/javax.swing.RepaintManager$4.run(RepaintManager.java:876)
at java.desktop/javax.swing.RepaintManager$4.run(RepaintManager.java:848)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:848)
at java.desktop/javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:823)
at java.desktop/javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:772)
at java.desktop/javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1884)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:316)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:770)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:715)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:391)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:740)
at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)

Answer 1

vector.removeAllElements();

Don't use the removeAllElements() method. Get rid of that statement.

Each row of the TableModel must be a new instance of the Vector. You can't reuse the same Vector.

    Vector<String> vector = new Vector<String>();
    while (rs.next()) {

The above code needs to be changed to:

    //Vector<String> vector = new Vector<String>();
    while (rs.next()) {
        Vector<String> vector = new Vector<String>();

So you have your new instance of the Vector.