帮忙看下这个程序错误

[dapenge]

import javax.swing.*;
import java.awt.*;
public class TeatFrame
{
public static void main (String[] args)
{
JFrame f=new JFrame("IT人才");
f.setSize(300,300);
Image img=new ImageIcon("c:\\Ji_Mi.gif").getImage();
f.getGraphics().drawImage(img,0,0,f);
f.setVisible(true);
f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);
}

}

[wd9053]

应该先setVisible(true)

import javax.swing.*;
 import java.awt.*;
 public class TestFrame
 {
  public static void main (String[] args)
 {
  JFrame f=new JFrame("IT人才");
  f.setSize(300,300);
  Image img=new ImageIcon("c:\\Ji_Mi.gif").getImage();
  f.setVisible(true);
  f.getGraphics().drawImage(img,0,0,f);
  //f.setVisible(true);
  f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);
  }
  
  }

[wd9053]

不过你要想在f中画图，应该覆盖paint方法

import javax.swing.*;
import java.awt.*;
public class TestFrame
{
	public static void main (String[] args)
	{
	JFrame f=new JFrame("IT人才")
	{
		Image img=new ImageIcon("c:\\Ji_Mi.gif").getImage();
		public void paint(Graphics g)
		{
			g.drawImage(img,0,0,this);
		}
	};
	f.setSize(300,300);
	f.setVisible(true);
	f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);
	}
}

[dapenge]

能出个窗体 但还是不能出窗口背景啊

[dapenge]

我先试试哈

[dapenge]

有其他写法吗？？ （不放在JFrame里面）

[go372900589]

不知道你说的是不是这个意思

import javax.swing.*;
import java.awt.*;
public class TestFrame	extends JFrame{
	public TestFrame()	{
		ImageIcon  img = new ImageIcon("E:/go/" + "L1.gif");
		JLabel jlb = new JLabel(img);		
		getContentPane().add(jlb);
	}
	
	
	public static void main (String[] args)		{
		TestFrame f= new TestFrame();
		f.setTitle("IT人才");
		f.setSize(300,300);		
		f.setVisible(true);
		f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);
	}
 
}