主题：程序代码——使用字体

import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;
import javax.microedition.midlet.MIDlet;

public class Exec extends MIDlet {
        private Display display;

        public Exec() {
                display = Display.getDisplay(this);
        }

        public void startApp() {

                display.setCurrent(new DrawPanel());
        }

        public void pauseApp() {
        }

        public void destroyApp(boolean unconditional) {
        }
}

class DrawPanel extends Canvas {
        public void paint(Graphics g) {
                String str = "NIIT 欢迎你";
                g.setColor(0, 0, 0);
                Font font = Font.getFont(Font.FACE_SYSTEM, Font.STYLE_BOLD,
                                Font.SIZE_LARGE);
                g.setFont(font);
                int fontWidth = font.stringWidth(str);
                int fontHeight = font.getHeight();
                g.drawString(str, getWidth() / 2 - fontWidth / 2, getHeight() / 2
                                - fontHeight / 2, Graphics.TOP | Graphics.LEFT);
        }
}