init project

.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>DotMatrixJava</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

src/aguegu/dotmatrix/DotMatrixPanel.java

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+package aguegu.dotmatrix;
+
+import javax.swing.JPanel;
+
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.BasicStroke;
+
+class DotMatrixPanel extends JPanel
+{
+	private static final long serialVersionUID = -2531292225634588108L;
+
+	private static final int BLOCK_WIDTH = 13;
+	private static final Color BACKGROUND_COLOR = Color.lightGray;
+	private static final Color ON_Color = Color.white;
+	private static final Color OFF_Color = Color.gray;
+
+	private boolean[] _dot;
+
+	public DotMatrixPanel()
+	{
+		super();
+		_dot = new boolean[64];
+	}
+
+	@Override
+	public void paintComponent(Graphics g)
+	{
+		super.paintComponent(g);
+		Graphics2D g2d = (Graphics2D) g;
+		g2d.setBackground(BACKGROUND_COLOR);
+		g2d.clearRect(0, 0, this.getWidth(), this.getHeight());
+
+		g2d.setColor(ON_Color);
+		BasicStroke bs = new BasicStroke(BLOCK_WIDTH - 1);
+		g2d.setStroke(bs);
+
+		for (int r = 0; r < 8; r++)
+		{
+			int y = BLOCK_WIDTH + r * BLOCK_WIDTH;
+			for (int c = 0; c < 8; c++)
+			{
+				int x = BLOCK_WIDTH + c * BLOCK_WIDTH;
+				g2d.drawLine(x, y, x, y);
+			}
+		}
+	}
+}

src/aguegu/dotmatrix/DotMatrixTest.java

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+package aguegu.dotmatrix;
+
+import javax.swing.JFrame;
+import aguegu.dotmatrix.DotMatrixPanel;
+
+public class DotMatrixTest
+{
+
+	public static void main(String[] args)
+	{
+		DotMatrixTest dmt = new DotMatrixTest();
+		dmt.go();
+
+	}
+
+	public void go()
+	{
+		JFrame frame = new JFrame("dot-matrix");
+		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		frame.setContentPane(new DotMatrixPanel());
+		frame.setBounds(100, 100, 800, 400);
+		// frame.setLocationRelativeTo(null);
+		// frame.setSize(800, 600);
+		frame.setVisible(true);
+	}
+}