新手求教

Question

我想重写Panel类,并重写了paintcomponent使其输出一幅图片,但不能够调用super.paintcomponent的方法!!
错误提示为:cannot not resolve method paintcomponent (java.awt.Graphics)
import java.awt.*;
import javax.imageio.*;
import javax.swing.*;
public class px extends Panel
{
public Image img;
px(Image img)
{
  super();
  this.img=img;
    
}
public void paintComponent(Graphics g)
{
                                g.drawImage(img,0,0,300,300,null);
                                super.paintComponent(g);
    }
}

Answer 1

函数名称写错了：
super.paintComponent(g);
改为
super.paintComponents(g);

Answer 2

已经可以了
package gui;
import java.awt.*;
import javax.swing.*;
import javax.imageio.ImageIO;
import java.io.*;
 class px extends JPanel{
private Image image=null;
public px(){
super();
}public void addBackgroundImage(String imagePath){
try{
    image=ImageIO.read(new File(imagePath));
    
}catch(Exception err){}}public void paintComponent(Graphics g){
g.drawImage(image,0,0,null);
}}

Answer 3

zhouonline(安然梦) 学的很快哦。