JTableから行を削除しようとすると、多くのエラーメッセージが表示される

Question

JTableから行を削除する際に問題があります。私のコードこの質問に基づく：私は、選択した行を削除するには、ボタンを押すとHow do you remove selected rows from a JTable?

public static void removeSelectedRows(JTable table){ 
    DefaultTableModel model = (DefaultTableModel) table.getModel(); 
    int[] rows = table.getSelectedRows(); 
    for (int i = rows.length - 1; i >= 0; i--) { 
     model.removeRow(rows[i]); 
    } 
} 

：

JButton button = new JButton("Delete selected"); 
button.addActionListener(new ActionListener(){ 
    public void actionPerformed(ActionEvent e) { 
     removeSelectedRows(table); 
    } 
}); 

私は私の端末でエラーメッセージの多くを受け取る：

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: javax.swing.JTable$1 cannot be cast to javax.swing.table.DefaultTableModel 
at ConfFrame.removeSelectedRows(ConfFrame.java:37) 
at ConfFrame$1.actionPerformed(ConfFrame.java:63) 
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) 
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2348) 
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) 
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) 
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:252) 
at java.awt.Component.processMouseEvent(Component.java:6533) 
at javax.swing.JComponent.processMouseEvent(JComponent.java:3315) 
at java.awt.Component.processEvent(Component.java:6298) 
at java.awt.Container.processEvent(Container.java:2236) 
at java.awt.Component.dispatchEventImpl(Component.java:4889) 
at java.awt.Container.dispatchEventImpl(Container.java:2294) 
at java.awt.Component.dispatchEvent(Component.java:4711) 
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4888) 
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4525) 
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4466) 
at java.awt.Container.dispatchEventImpl(Container.java:2280) 
at java.awt.Window.dispatchEventImpl(Window.java:2746) 
at java.awt.Component.dispatchEvent(Component.java:4711) 
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) 
at java.awt.EventQueue.access$500(EventQueue.java:97) 
at java.awt.EventQueue$3.run(EventQueue.java:709) 
at java.awt.EventQueue$3.run(EventQueue.java:703) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) 
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) 
at java.awt.EventQueue$4.run(EventQueue.java:731) 
at java.awt.EventQueue$4.run(EventQueue.java:729) 
at java.security.AccessController.doPrivileged(Native Method) 
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) 
at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) 
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) 
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) 
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) 
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) 
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) 
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) 

Answer 1

あなたは固定データでテーブルを作成しているので、内部クラスがTableModelとして使用されています。あなたがするTableModelを取得し、DefaultTableModelのにキャストすることができるようになりますあなたのコードで今すぐ

DefaultTableModel model = new DefaultTableModel(...); 
JTable table = new JTable(model); 

：

は、代わりにあなたはあなたのようなJTableコードで何かを作成する必要があります。