How to insert the data from the object into the jTable?

Question

I have an object Person . This object is in a List. Now I want to insert the data vorname , nachname and alter into the jTable .

How can I do this?

public MainForm() {
    eintragenButton.addActionListener(new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {

            personList = personAnlegen.PersonAnlegen(
                    textFieldVorname.getText(),
                    textFieldNachname.getText(),
                    textFieldAlter.getText()
            );

            String[] spaltenueberschrift = {"Vorname", "Nachname","Alter"};
            String[][] inhalt;

            for (int i = 0; i < personList.size(); i++) {
                inhalt[i][i] = personList.get(0).getVorname(), personList.get(0).getNachname(), personList.get(0).getAlter();
            }

            tablePersonen = new JTable();
            scrollPane.setViewportView(tablePersonen);

            DefaultTableModel tableModel = new DefaultTableModel(
                    inhalt,
                    spaltenueberschrift
            );
            tablePersonen.setModel(tableModel);
        }
    });
}

Answer 1

I have I a object "Person" this object is in a List

Basically the List needs to be part of a custom TableModel .

You need to create a custom TableModel for your Person object.

Check out Row Table Model for a step by step approach on how you can do this.

The link also shows how to make a more generic TableModel so you can reuse common code.

Answer 2

"Versuch dies" try this

JTable tablePersonen = new JTable(inhalt, spaltenueberschrift);

JTable(Object[][] rowData, Object[] columnNames)

openbooks(in german): http://openbook.rheinwerk-verlag.de/javainsel9/javainsel_19_019.htm

Answer 3

You should make new AbstractTableModel() http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#data

    personList = personAnlegen.PersonAnlegen(
            textFieldVorname.getText(),
            textFieldNachname.getText(),
            textFieldAlter.getText()
    );

    String[] spaltenueberschrift = {"Vorname", "Nachname","Alter"};
    String[][] inhalt;

    for (int i = 0; i < personList.size(); i++) {
        inhalt[i][i] = personList.get(0).getVorname(), personList.get(0).getNachname(), personList.get(0).getAlter();
    }

    tablePersonen = new JTable();
    scrollPane.setViewportView(tablePersonen);

    tablePersonen.setModel(new AbstractTableModel() {

        @Override
        public Object getValueAt(int rowIndex, int columnIndex) {
            return inhalt[rowIndex][columnIndex];
        }


        @Override
        public int getRowCount() {
            return inhalt.length;
        }

        @Override
        public int getColumnCount() {

            return spaltenueberschrift.length;
        }

        public String getColumnName(int col) {
            return spaltenueberschrift[col];
        }
    });