change Font of text in java

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

public class ShowColorAndFont extends JPanel {
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    String text = "Java is an Object Oriented Programming Language.";
    Dimension dimension = getSize();

    Font font1 = new Font("Book Antiqua", Font.PLAIN, 30);
    Font font2 = new Font("Monotype Corsiva", Font.PLAIN, 30);

    AttributedString attributedString = new AttributedString(text);
    attributedString.addAttribute(TextAttribute.FONT, font1);
    attributedString.addAttribute(TextAttribute.FONT, font2, 1, 4);
  attributedString.addAttribute(TextAttribute.FONT, font2, 6, 7);
  attributedString.addAttribute(TextAttribute.FONT, font2, 9, 10);
  attributedString.addAttribute(TextAttribute.FONT, font2, 12, 17);
  attributedString.addAttribute(TextAttribute.FONT, font2, 19, 26);
  attributedString.addAttribute(TextAttribute.FONT, font2, 28, 38);
  attributedString.addAttribute(TextAttribute.FONT, font2, 40, 47);

  attributedString.addAttribute(TextAttribute.FOREGROUND, Color.red, 0, 1);
    attributedString.addAttribute(TextAttribute.FOREGROUND, Color.red, 5, 6);
  attributedString.addAttribute(TextAttribute.FOREGROUND, Color.red, 8, 9);
  attributedString.addAttribute(TextAttribute.FOREGROUND, Color.red, 11, 12);
  attributedString.addAttribute(TextAttribute.FOREGROUND, Color.red, 18, 19);
  attributedString.addAttribute(TextAttribute.FOREGROUND, Color.red, 27, 28);
  attributedString.addAttribute(TextAttribute.FOREGROUND, Color.red, 39, 40);
    
    g2d.drawString(attributedString.getIterator(), 40, 80);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame("Show Color and Font");
    frame.getContentPane().add(new ShowColorAndFont());
    frame.setSize(700, 200);
    frame.show();

  }