import java.awt.Font;
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main {
public static void main(String[] args) {
final int w = 20;
final int side = 25;
final int[][] grid = new int[50][w];
JPanel panel = new JPanel() {
public void paintComponent(Graphics g) {
Font font = new Font("WingDings", Font.PLAIN, 14);
g.setFont(font);
int off = 0;
for (int i = 0; i < 256 * 256; i++) {
if (font.canDisplay((char) i)) {
off++;
grid[off / w][off % w] = i;
int x = off % w * side;
int y = (off / w) * side + side;
g.drawString("" + (char) i, x, y);
}
}
}
};
JFrame frame = new JFrame();
panel.setSize(300, 300);
frame.getContentPane().add(panel);
frame.setSize(300, 300);
frame.setVisible(true);
}
}