import java.awt.*;import java.awt.image.*;import javax.swing.*;class GridLines { public static void main(String[] args) { Dimension imgDim = new Dimension(200,200); BufferedImage mazeImage = new BufferedImage(imgDim.width, imgDim.height, BufferedImage.TYPE_INT_RGB); Graphics2D g2d = mazeImage.createGraphics(); g2d.setBackground(Color.WHITE); g2d.fillRect(0, 0, imgDim.width, imgDim.height); g2d.setColor(Color.BLACK); BasicStroke bs = new BasicStroke(2); g2d.setStroke(bs); // draw the black vertical and horizontal lines for(int i=0;i<21;i++){ // unless divided by some factor, these lines were being // drawn outside the bound of the image.. g2d.drawLine((imgDim.width+2)/20*i, 0, (imgDim.width+2)/20*i,imgDim.height-1); g2d.drawLine(0, (imgDim.height+2)/20*i, imgDim.width-1, (imgDim.height+2)/20*i); } ImageIcon ii = new ImageIcon(mazeImage); JOptionPane.showMessageDialog(null, ii); }}
