利用Timer类实现字符串移动代码 java

public class MyPanel extends JPanel implements ActionListener{
Timer time=new Timer(1000,this);  //设定计时器
int x=0;

public MyPanel(){   // 启动
time.start();
}

public void actionPerformed(ActionEvent e) {  //更新x坐标
if(x>getWidth()){
x=-25;
}
x+=50;
repaint();
}
protected void paintComponent(Graphics g){  //绘图
super.paintComponent(g);
g.drawString("你妹", x, 200);
}

}