how to insert multiple database in jtable rows?

Here are the main steps you can follow :

1. Create a JTable and a DefaultTableModel.

2. Add columns to the DefaultTableModel.

3. Insert rows into the DefaultTableModel.

import javax.swing.*;
import javax.swing.table.DefaultTableModel;

public class JTableExample {
    public static void main(String[] args) {
        // Create a JFrame
        JFrame frame = new JFrame("JTable Example");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setSize(400, 300);

        // Create a DefaultTableModel
        DefaultTableModel model = new DefaultTableModel();

        // Add columns to the model
        model.addColumn("ID");
        model.addColumn("Name");
        model.addColumn("Age");

        // Create a JTable with the model
        JTable table = new JTable(model);

        // Add the table to a JScrollPane
        JScrollPane scrollPane = new JScrollPane(table);

        // Add the JScrollPane to the frame
        frame.add(scrollPane);

        // Insert multiple rows into the table
        Object[] row1 = {1, "Shubham Wadhwa", 25};
        Object[] row2 = {2, "John Doe", 30};
        Object[] row3 = {3, "Jane Doe", 28};

        model.addRow(row1);
        model.addRow(row2);
        model.addRow(row3);

        // Display the frame
        frame.setVisible(true);
    }
}