Text Typer



Instructions:  1. Click on the panel.  2. Type text.  3. Press enter for new line.  4. Press Backspace to delete text.
5. Press CTRL+R for Red text.  6. Press CTRL+G for Green text.  7. Press CTRL+K for Black text.
8. Press CTRL+B for Bold text.  9. Press CTRL+P for Plain text.  10. Press CTRL+I for Italic text.
 

Complete Source Code

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


public class TextTyper {


   public static String[] sentence = new String[15];
   public static int index = 0;
   public static Color color = Color.BLACK;
   public static Font font = new Font("TimesRoman",Font.PLAIN,14);

   public static class TextTyperPanel extends JPanel {

      public void paintComponent(Graphics g) {

         super.paintComponent(g);

         g.setColor(color);
         g.setFont(font);
         g.drawString(sentence[index] + "_",10,15*(index+1));

      }

   }

   public static class TextTyperListener implements MouseListener, KeyListener {

      public void mousePressed(MouseEvent e) {

         TextTyperPanel source = (TextTyperPanel) e.getSource();
         source.requestFocus();

      }

      public void mouseReleased(MouseEvent e) {}
      public void mouseClicked(MouseEvent e) {}
      public void mouseEntered(MouseEvent e) {}
      public void mouseExited(MouseEvent e) {}

      public void keyPressed(KeyEvent e) {

         TextTyperPanel source = (TextTyperPanel) e.getSource();

         if (e.getKeyCode() == KeyEvent.VK_BACK_SPACE && sentence[index].length() > 0) {

            sentence[index] = sentence[index].substring(0,sentence[index].length()-1);
            source.repaint(0,15*(index)+5,600,20);

         }

         if (e.getKeyCode() == KeyEvent.VK_ENTER && index < 14) {

            index++;
            source.repaint(0,15*(index)+5,600,20);

         }

         if (e.getKeyCode() == KeyEvent.VK_R && e.getModifiers() == 2) color = Color.RED;
         if (e.getKeyCode() == KeyEvent.VK_G && e.getModifiers() == 2) color = Color.GREEN;
         if (e.getKeyCode() == KeyEvent.VK_K && e.getModifiers() == 2) color = Color.BLACK;

         if (e.getKeyCode() == KeyEvent.VK_B && e.getModifiers() == 2) {

            font = new Font("TimesRoman",Font.BOLD,14);

         }

         if (e.getKeyCode() == KeyEvent.VK_P && e.getModifiers() == 2) {

            font = new Font("TimesRoman",Font.PLAIN,14);

         }

         if (e.getKeyCode() == KeyEvent.VK_I && e.getModifiers() == 2) {

            font = new Font("TimesRoman",Font.ITALIC,14);

         }

      }

      public void keyReleased(KeyEvent e) {}

      public void keyTyped(KeyEvent e) {

         TextTyperPanel source = (TextTyperPanel) e.getSource();

         if (e.getKeyChar() != '\b' && sentence[index].length() < 70
                                    && e.getModifiers() != 2) {

            sentence[index] += e.getKeyChar();
            source.repaint(0,15*(index)+5,600,20);

         }

      }

   }

   public static void main(String[] args) {

      TextTyperListener listener = new TextTyperListener();
      TextTyperPanel myPanel = new TextTyperPanel();
      JFrame myFrame = new JFrame("TextTyper");

      myPanel.setBackground(Color.WHITE);
      myPanel.addMouseListener(listener);
      myPanel.addKeyListener(listener);

      myFrame.add(myPanel);
      myFrame.setSize(616,338);
      myFrame.setLocation(100,100);
      myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      myFrame.setVisible(true);

      for (int i = 0; i < 15; i++) sentence[i] = "";

   }


}