?? midlet2.java
字號:
package prj12_1;
import javax.microedition.lcdui.Canvas;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Graphics;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
public class MIDlet2 extends MIDlet {
private MyCanvas mc = new MyCanvas();
private Display dis;
protected void startApp() throws MIDletStateChangeException {
dis = Display.getDisplay(this);
mc.setTitle("MyCanvas");
dis.setCurrent(mc);
}
protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
// TODO Auto-generated method stub
}
protected void pauseApp() {
// TODO Auto-generated method stub
}
class MyCanvas extends Canvas{
public void paint(Graphics g){//參數g負責在畫布上畫圖
//設置畫筆顏色
g.setColor(200, 100, 20);//各個分量在0-255之間
g.setStrokeStyle(Graphics.DOTTED);//虛線
//畫線
g.drawLine(10,10, 45,67);
//畫矩形
g.drawRect(10,20, 100,25);
//畫圓角矩形
g.drawRoundRect(100,200, 100,25,10,10);
//畫弧線
g.drawArc(100,200, 100,25,90,180);
}
}
}
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