Java-在GUI中向JTable添加新行

Question

I have a simple Java GUI which is displaying an empty table and a few buttons. I am now trying to add a listener to one of the buttons that will add a new empty row (with editable cells) to the table in the GUI.

I am using the following code to try and do this:

JButton addBtn = new JButton("Add");
addBtn.addActionListener(new ActionListener(){
    public void actionPerformed(ActionEvent e){
        System.out.println("'Add' button pressed. ");
        DefaultTableModel model = (DefaultTableModel)jEntityFilterTable.getModel();
        model.addRow(new Object[]{"Site", "Application", "Entity"});
        System.out.println("--- ActionListener added to 'addBtn' ---");
    }
});

However, when I click the button, I am getting a java.lang.ArrayIndexOutOfBoundsException . It says that this is occurring on the following line:

model.addRow(new Object[]{"Site", "Application", "Entity"});

I am not sure why I'm getting this exception... I've created a new Object[] array, and given it three elements... but I'm not trying to access those elements (or any elements that don't exist)...

Can anyone point out what I'm doing wrong here?

Answer 1

I think this will work

DefaultTableModel model = (DefaultTableModel) jEntityFilterTable.getModel();

Vector row = new Vector();
row.add("Site");
row.add("Application");
row.add("Entity");
model.addRow(row);