Icon,ImageIcon标签

public class IconDemo extends JFrame implements  Icon {
int width;
int height;
public  IconDemo(){
}
    public  IconDemo(int width,int height){
        this.width=width;
        this.height=height;
    }
    public  void init(){
        Icon icon=new IconDemo(20,30);
        JLabel label=new JLabel("hahaha",icon,SwingConstants.CENTER);
        Container container= this.getContentPane();
        container.add(label);
       setVisible(true);
    }
    public static void main(String[] args) {
new IconDemo().init();
    }

    @Override
    public void paintIcon(Component c, Graphics g, int x, int y) {
            g.fillOval(x,y,width,height);
    }

    @Override
    public int getIconWidth() {
        return width;
    }

    @Override
    public int getIconHeight() {
        return  height;
    }
}

 

 

 

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