extends Canvas : Canvas « javax.microedition.lcdui « Java by API

1. Java by API
2. javax.microedition.lcdui
3. Canvas

extends Canvas

 
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Graphics;
import javax.microedition.midlet.MIDlet;

public class TextAnchorMIDlet extends MIDlet implements CommandListener {

  private Command exitCommand;

  Display display;

  public void startApp() {
    Display display = Display.getDisplay(this);
    Displayable d = new TextAnchorCanvas();
    exitCommand = new Command("exit", Command.EXIT, 1);

    d.addCommand(exitCommand);
    d.setCommandListener(this);

    display.setCurrent(d);
  }

  public void pauseApp() {
  }

  public void destroyApp(boolean unconditional) {
  }

  public void commandAction(Command c, Displayable s) {
    notifyDestroyed();
  }
}

class TextAnchorCanvas extends Canvas {

  int width = 0;

  int height = 0;

  public void paint(Graphics g) {
    width = getWidth();
    height = getHeight();

    g.setGrayScale(255);
    g.fillRect(0, 0, width - 1, height - 1);
    g.setGrayScale(0);
    g.drawRect(0, 0, width - 1, height - 1);

    g.drawString("TEXT", width / 2, height / 2, Graphics.BASELINE | Graphics.HCENTER);
  }
}

   
  

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