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POunable to apply graphics to if statement
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copied!<p>I'm writing a program that has a grid of squares that when you click on one, it changes color from black to red. I'm writing the if statement for the first square, and It's not letting me do anything with graphics. How do I 1) change the color to red, 2) draw a new square in the same place, and 3) why dosen't it like the <code>MouseHandler</code> class declaration?</p> <pre><code>import java.awt.*; import javax.swing.*; import java.awt.*; import java.awt.event.*; import java.util.*; public class toggle extends JPanel{ public void paintComponent(Graphics g){ super.paintComponents(g); g.fillRect(0,0,20,20); g.fillRect(21,0,20,20); g.fillRect(42,0,20,20); g.fillRect(63,0,20,20); g.fillRect(84,0,20,20); g.fillRect(105,0,20,20); g.fillRect(126,0,20,20); g.fillRect(147,0,20,20); g.fillRect(168,0,20,20); g.fillRect(189,0,20,20); g.fillRect(190,0,20,20); // g.fillRect(0,21,20,20); g.fillRect(21,21,20,20); g.fillRect(42,21,20,20); g.fillRect(63,21,20,20); g.fillRect(84,21,20,20); g.fillRect(105,21,20,20); g.fillRect(126,21,20,20); g.fillRect(147,21,20,20); g.fillRect(168,21,20,20); g.fillRect(189,21,20,20); g.fillRect(190,21,20,20); // g.fillRect(0,42,20,20); g.fillRect(21,42,20,20); g.fillRect(42,42,20,20); g.fillRect(63,42,20,20); g.fillRect(84,42,20,20); g.fillRect(105,42,20,20); g.fillRect(126,42,20,20); g.fillRect(147,42,20,20); g.fillRect(168,42,20,20); g.fillRect(189,42,20,20); g.fillRect(190,42,20,20); // g.fillRect(0,63,20,20); g.fillRect(21,63,20,20); g.fillRect(42,63,20,20); g.fillRect(63,63,20,20); g.fillRect(84,63,20,20); g.fillRect(105,63,20,20); g.fillRect(126,63,20,20); g.fillRect(147,63,20,20); g.fillRect(168,63,20,20); g.fillRect(189,63,20,20); g.fillRect(190,63,20,20); // g.fillRect(0,84,20,20); g.fillRect(21,84,20,20); g.fillRect(42,84,20,20); g.fillRect(63,84,20,20); g.fillRect(84,84,20,20); g.fillRect(105,84,20,20); g.fillRect(126,84,20,20); g.fillRect(147,84,20,20); g.fillRect(168,84,20,20); g.fillRect(189,84,20,20); g.fillRect(190,84,20,20); // g.fillRect(0,105,20,20); g.fillRect(21,105,20,20); g.fillRect(42,105,20,20); g.fillRect(63,105,20,20); g.fillRect(84,105,20,20); g.fillRect(105,105,20,20); g.fillRect(126,105,20,20); g.fillRect(147,105,20,20); g.fillRect(168,105,20,20); g.fillRect(189,105,20,20); g.fillRect(190,105,20,20); // g.fillRect(0,126,20,20); g.fillRect(21,126,20,20); g.fillRect(42,126,20,20); g.fillRect(63,126,20,20); g.fillRect(84,126,20,20); g.fillRect(105,126,20,20); g.fillRect(126,126,20,20); g.fillRect(147,126,20,20); g.fillRect(168,126,20,20); g.fillRect(189,126,20,20); g.fillRect(190,126,20,20); // g.fillRect(0,147,20,20); g.fillRect(21,147,20,20); g.fillRect(42,147,20,20); g.fillRect(63,147,20,20); g.fillRect(84,147,20,20); g.fillRect(105,147,20,20); g.fillRect(126,147,20,20); g.fillRect(147,147,20,20); g.fillRect(168,147,20,20); g.fillRect(189,147,20,20); g.fillRect(190,147,20,20); // g.fillRect(0,168,20,20); g.fillRect(21,168,20,20); g.fillRect(42,168,20,20); g.fillRect(63,168,20,20); g.fillRect(84,168,20,20); g.fillRect(105,168,20,20); g.fillRect(126,168,20,20); g.fillRect(147,168,20,20); g.fillRect(168,168,20,20); g.fillRect(189,168,20,20); g.fillRect(190,168,20,20); // g.fillRect(0,189,20,20); g.fillRect(21,189,20,20); g.fillRect(42,189,20,20); g.fillRect(63,189,20,20); g.fillRect(84,189,20,20); g.fillRect(105,189,20,20); g.fillRect(126,189,20,20); g.fillRect(147,189,20,20); g.fillRect(168,189,20,20); g.fillRect(189,189,20,20); g.fillRect(190,189,20,20); } public toggle(){ super(); JFrame frame=new JFrame(); frame.setTitle("toggle"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(this); frame.setSize(226, 247); frame.setVisible(true); MouseHandler hand=new MouseHandler(); addMouseListener(hand); } public class MouseHandler implements MouseListener{ public void MousePressed (MouseEvent e){ if(e.getX()<20&&e.getX()>0&&e.getY()<20&&e.getY()>0){ } } } public static void main (String[]args){ new toggle(); } } </code></pre>

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