BufferedImage

import java.awt.*; 
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage; 
import java.io.*; 
 
import javax.imageio.ImageIO; 
import javax.swing.Box;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame; 
import javax.swing.JPanel;
public class proba { 
    private static final long serialVersionUID = 1L;
        
    BufferedImage image;
    
    proba() throws IOException
    {
        image=ImageIO.read(new File("src/pic.jpeg"));
    }
    
    public void paint ( Graphics g ) { 
        //Image image=new ImageIcon("D:/Дипломна/eclipse/Prog_h_01/src/pic.jpeg").getImage();
        g.drawImage ( image, 0 , 0 , null ) ;
        
    }
    
    public static void main ( String args []){ 
        JFrame frame = new JFrame ( "Display image" ) ;
        JPanel panel=new JPanel();
        frame.getContentPane () ; 
        frame.setSize ( 300,300 ) ; 
        frame.setVisible ( true ) ; 
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().add(panel);
    } 
}

package Test;
 
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
 
import javax.imageio.ImageIO;
import javax.swing.JFrame;
 
public class Test {
    
    public static void main(String[] args) throws IOException {
        JFrame testFrame = new JFrame("Display image"); 
        BufferedImage image = ImageIO.read(new File("path to image file"));
        TestPanel testPanel = new TestPanel(image);
        testFrame.setSize(300,300); 
        testFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        testFrame.add(testPanel);
        testFrame.setVisible(true); 
    }
}

package Test;
 
import java.awt.Graphics;
import java.awt.image.BufferedImage;
 
import javax.swing.JPanel;
 
public class TestPanel extends JPanel {
    private BufferedImage image;
    
    public TestPanel(BufferedImage image) {
        this.image = image;
    }
    
    @Override
    public void paintComponent(Graphics g) {
        if(image != null) {
            g.drawImage(image, 0, 0, null);
        }
    }
}