visualbeanex.java

来自「B/S架构的软件项目实训；包括全部详细文档合源程序」· Java 代码 · 共 26 行

package sunw.demo.VisualBeanEx;//包名，与BDK中的目录结构对应
import java.awt.*;
import java.io.Serializable;
public class  VisualBeanEx extends Canvas implements Serializable
{
	private Color color=Color.green;
	
	public VisualBeanEx() 
	{
		setSize(60,40);
		setBackground(Color.red);
	}

	public Color getColor(){ return color;}
	public void setColor(Color newColor)
	{ 
		color=newColor;
		repaint();
	}
    public void paint(Graphics g)
	{
		g.setColor(color);
		g.fillRect(20,5,20,30);
	}
}