java实现的满天星效果实例

publicclassMain{
       publicstaticvoidmain(String[]args){
               Frameframe=newFrame("满天星");
               MyPanelpanel=newMyPanel();
               frame.add(panel);
               frame.setBackground(Color.BLACK);
               frame.setSize(1024,768);
               frame.setVisible(true);
       }
}

classMyPanelextendsPanel{
       privatestaticfinallongserialVersionUID=1L;

       publicvoidpaint(Graphicsg){
               g.setColor(Color.WHITE);
               for(inti=0;i<300;i++){
                       g.drawString("*",(int)(Math.random()*1024),
                                       (int)(Math.random()*768));
               }
               g.fillOval(800,100,100,100);
               g.setColor(Color.BLACK);
               g.fillOval(780,80,100,100);

       }

}