Differences

This shows you the differences between two versions of the page.

--- checkerboard [2024/10/29 13:11] – created frchris
+++ checkerboard [2024/10/29 13:15] (current) – frchris
@@ Line 1: / Line 1: @@
 **Checker Board**
+Make a checkerboard
+Write a graphical application that displays a checkerboard with 64 squares, alternating white and black.
+Use nested loops.  Hint:  You can add the row and column, and if it is odd make it one color, and if it is even, you can made it the other color.
@@ Line 35: / Line 41: @@
    private int numSquares;
    private int size;
+}
+</code>
+<code java CheckerBoardComponent.java>
+import javax.swing.JComponent;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+public class CheckerBoardComponent extends JComponent
+{
+   public void paintComponent(Graphics g)
+   {
+      Graphics2D g2 = (Graphics2D) g;
+      final int NSQUARES = 8;
+      int size = Math.min(getWidth(), getHeight()) / NSQUARES;
+      CheckerBoard cb = new CheckerBoard(NSQUARES, size);
+      cb.draw(g2);
+   }
+}
+</code>
+<code java CheckerBoardViewer.java>
+import javax.swing.JFrame;
+/**
+   This program displays a checkerboard.
+*/
+public class CheckerBoardViewer
+{
+   public static void main(String[] args)
+   {
+      JFrame frame = new JFrame();
+      final int FRAME_WIDTH = 330;
+      final int FRAME_HEIGHT = 360;
+      frame.setSize(FRAME_WIDTH, FRAME_HEIGHT);
+      frame.setTitle("CheckerBoardViewer");
+      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+      CheckerBoardComponent component = new CheckerBoardComponent();
+      frame.add(component);
+      frame.setVisible(true);
+   }
 }
 </code>