Question

这个JAVA程序为什么不能出现图片？

import java.awt.* ;
import javax.swing.* ;
import java.awt.event.*;
import java.util.EventListener;
public class zz extends JFrame{
zzpane pane=new zzpane();
public zz(){
super("按时间动");
JPanel pane=new JPanel();
pane.setLayout(new GridLayout(1,1,15,15));
setVisible(true);
setContentPane(pane);
setSize(344,344);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
public static void main(String[] a){zz k=new zz();}
}//上面设置面板

class zzpane extends JPanel implements Runnable{
Thread runner;
int x=30;
Image a;
public zzpane(){
Toolkit kit=Toolkit.getDefaultToolkit();
a=kit.getImage("F://java//a.jpg");
if(runner==null){
runner=new Thread(this);
runner.start();
}
}
@Override

public void run(){}
//线程
@Override
protected void paintComponent(Graphics arg0){
Graphics2D comp=(Graphics2D)arg0;
comp.drawImage(a,x,30,this);

}
}

Answer 1

在本程序源码所在的目录中创建名为images的文件夹，把图片放在它里面，然后直接用

ImageIcon icon = new ImageIcon("images\\a.jpg");
a=kit.getImage(icon);