Want my JButton to return a previous area of text

I am trying to create a GUI that gives you hints when the program is opened. I am not sure how I am going to be able to add my text and then create buttons that allow me to go to the next text or return to the previous. I am not sure what type of actionListener I should use for that.

import java.awt.*;
import javax.swing.*;


public class HelpfulHints extends JFrame{

    private JTextArea area; //This is my textarea to display hints
    private JPanel panel;
    private JButton close, previous, next; //Three buttons to operate program

    public HelpfulHints(){

        super("Tip of the Day");
        setLayout(new BorderLayout());

        panel = new JPanel();
        panel.setLayout(new FlowLayout(FlowLayout.CENTER));

        //Create first button
        close= new JButton("Close");
        add(close);

        //Create second button
        previous = new JButton("Previous");
        add(previous);

        //Create third button
        next = new JButton("Next");
        add(next);

        //Add buttons to panel
        panel.add(close);
        panel.add(previous);
        panel.add(next);

        //Keep buttons to south of panel
        add(panel, BorderLayout.SOUTH);

        //Create ButtonHandler for button event handling
        ButtonHandler handler = new ButtonHandler();
        close.addActionListener(handler);
        previous.addActionListener(handler);
        next.addActionListener(handler);

        //Create the helpful hint area on the screen
        area = new JTextArea();
        area.setEditable(true);
        area.setLayout(new FlowLayout(FlowLayout.CENTER));

        add(area, BorderLayout.CENTER);

        setVisible(true);

    }

    //Inner class for button event handling
    private class ButtonHandler implements ActionListener{

        //handle Button event
        @Override
        public void actionPerformed(ActionEvent e){


        }
    }
}