JTable

To use JTable, take a look at this link:

This is demo code below, try it.

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.table.*;
//notice that I say implements actionlistener, this is to say that I will be listening for actions
public class TableExample extends JApplet implements ActionListener 
{
    DefaultTableModel model = new DefaultTableModel();
    JTable table = new JTable(model);
    JButton addRowButton= new JButton ("Add");

    //init is a method that gets called automatically when the applet starts or initializes
    //in init we are adding our swing components to the applet
    public void init()
    {
        Container screen = getContentPane();
        screen.setBackground(Color.green);
        screen.setLayout (new FlowLayout() );

        screen.add(addRowButton);
        screen.add(table);

        model.addColumn("Col1");
        model.addColumn("Col2");

        // Append a row
        model.addRow(new Object[]{"v1", "v2"});
        model.addRow(new Object[]{"v1", "v2"});
        model.addRow(new Object[]{"v1", "v2"});
        // there are now 2 rows with 2 columns

        //for all components that i want to listen for an action [like a click of button]
        //I add action listener saying Im going to be listening
        addRowButton.addActionListener(this); 

    }

    //in paint I tell it to paint the components and then draw a line
    public void paint (Graphics g)
    {
        super.paint(g);
        g.drawLine(5,200,400,200);
    }

    //now we have to have a method actionPerformed that will be called if an action happens
    //we then see which component had the action on it
    public void actionPerformed(ActionEvent thisEvent)
    {
        Object source = thisEvent.getSource();

        if (source == addRowButton)
        {     
            model.addRow(new Object[]{"v1", "v2"});
        }
        
    }
}