请问如何在JPanel中添加条形统计图

[夏日冰淇淋]

Sale1 s1 = new Sale1();
Sale2 s2 = new Sale2();
Sale3 s3 = new Sale3();

panel_1.add("s1",s1);
panel_1.add("s2",s2);
panel_1.add("s3",s3);


}

@Override
public void mouseClicked(MouseEvent e) {
if(e.getSource()==label1){
p1.show(panel_1, "s1");

}else if(e.getSource()==label2){
p1.show(panel_1, "s2");

}else if(e.getSource()==label3){
p1.show(panel_1, "s3");
}
label1.setForeground(Color.BLACK);
label2.setForeground(Color.BLACK);
label3.setForeground(Color.BLACK);
JLabel label = (JLabel) e.getSource();
label.setForeground(Color.WHITE);

}




已经做好了卡片布局，想在点击label2是显示的JPanel中添加一个条形统计图，小白新手求指导



在这里空白添加统计图