我在制作的行中有错误，catch我想知道如何将图像添加到 jframe。我已经尝试了很多东西，但我无法让它工作，有人可以帮助我吗？
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import java.io.File;
import java.awt.*;
import java.awt.image.*;
public class Frame extends JFrame {
private JLabel foto;
// private JButton previous, next;
public Frame() throws Exception{
super("Colors");
setLayout(new FlowLayout());
BufferedImage imagen = null;
try{
imagen = ImageIO.read(new File("C:\\Users\\Juan Barrientos\\Desktop\\cuadro.bmp"));
foto.setIcon(new ImageIcon(imagen));
}catch(IOException e){
foto.setIcon(null);
}
// ImageIcon image = new ImageIcon("C:\\Users\\Juan Barrientos\\Desktop\\cuadro.bmp");
// JLabel foto = new Jlabel(image);
// add(foto,BorderLayout.CENTER);
JButton rojo = new JButton ("Rojo");
add(rojo);
JButton azul = new JButton ("Azul");
add(azul);
JButton verde = new JButton ("Verde");
add(verde);
JButton rva = new JButton ("RVA");
add(rva);
JButton rav = new JButton ("RAV");
add(rav);
}
public static void main(String[] ar) throws Exception{
Frame color1=new Frame();
color1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
color1.setSize(800, 800);
color1.setBounds(0,0,300,200);
color1.setResizable(true);
color1.setVisible(true);
}
}