GUI Typewriter Effect

import java.awt.BorderLayout;

import java.awt.EventQueue;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.Timer;

import javax.swing.border.EmptyBorder;

import javax.swing.JLabel;

import javax.swing.JButton;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

public class MoveTextTypewritterEffect extends JFrame {

private JPanel contentPane;

private JTextArea textArea;

private JTextField textField;

public static void main(String[] args) {

EventQueue.invokeLater(new Runnable() {

public void run() {

try {

MoveTextTypewritterEffect frame = new MoveTextTypewritterEffect();

frame.setVisible(true);

} catch (Exception e) {

e.printStackTrace();

}

}

});

}

public MoveTextTypewritterEffect() {

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

setBounds(100, 100, 450, 300);

contentPane = new JPanel();

contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));

setContentPane(contentPane);

contentPane.setLayout(null);

textArea = new JTextArea();

textArea.setLineWrap(true);

textArea.setBounds(27, 197, 395, 47);

textArea.setEditable(false);

contentPane.add(textArea);

textField = new JTextField();

textField.setBounds(27, 17, 395, 26);

textField.setColumns(10);

contentPane.add(textField);

textField.addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

textArea.setText("");

String tempString = textField.getText();

if(tempString.equals("yes")) {

slowPrint("Test Message...so you answered yes", 100);

}

if(tempString.equals("no")) {

slowPrint("Test Message...so you answered no", 100);

}

}

});

}

public void slowPrint(String message, int millisPerChar) {

Timer timer = new Timer(millisPerChar, null);

timer.addActionListener(new ActionListener() {

int counter = 0;

@Override

public void actionPerformed(ActionEvent e) {

textArea.append(String.valueOf(message.charAt(counter++)));

textArea.setCaretPosition(textArea.getDocument().getLength());

if (counter >= message.length()) {

timer.stop();

}

}

});

timer.start();

}

}