Nilai berulang saat Mengisi JTable

Jangan gunakan JTable#setValue saat memperbarui JTable , sebagai gantinya, tambahkan baris baru atau ubah baris yang ada melalui model.

Juga, Anda tidak menambah rowNum nilai, jadi Anda selalu berinteraksi dengan baris pertama tabel

Contoh sederhana

Contoh sederhana yang menggunakan Swing Timer untuk menambahkan baris baru ke model...

import java.awt.BorderLayout;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.Timer;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.table.DefaultTableModel;

public class TestTableModel01 {

    public static void main(String[] args) {
        new TestTableModel01();
    }

    public TestTableModel01() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                }

                final DefaultTableModel model = new DefaultTableModel(new Object[]{"A", "B", "C", "D", "E"}, 0);
                JTable table = new JTable(model);

                JFrame frame = new JFrame("Test");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setLayout(new BorderLayout());
                frame.add(new JScrollPane(table));
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);

                Timer timer = new Timer(500, new ActionListener() {
                    @Override
                    public void actionPerformed(ActionEvent e) {
                        if (model.getRowCount() < 100) {
                            int row = model.getRowCount();
                            model.addRow(new Object[]{
                                row + "x" + 0,
                                row + "x" + 1,
                                row + "x" + 2,
                                row + "x" + 3,
                                row + "x" + 4
                            });
                        } else {
                            ((Timer)(e.getSource())).stop();
                        }
                    }
                });
                timer.start();
            }
        });
    }
}