如何将图像添加到JFrame

Question

I'm trying to add an image to a JFrame and set its location, I don't know why it just does not add into it, maybe I don't understand how the JFrame class works since a normal text JLabel adds into the JFrame simply without any trouble and a JLabel containing an image simply does not add in.

I would appreciate if someone would explain the error in the code, and maybe even give me a short explanation of why my way does not work. Thanks!

import java.awt.*;
import javax.swing.*;

public class Walk {
    public static void main(String[] args) {
        JFrame f = new JFrame("Study");
        f.setSize(3000,1000);
        f.getContentPane().setBackground(Color.white);
        f.getContentPane().add(new JLabel("test", JLabel.CENTER) );
        JLabel l = new JLabel(new ImageIcon("C:\\Users\\leguy\\OneDrive\\Desktop\\Stuff\\stillsp"));
        l.setBounds(100, 100, 100, 100);
        l.setVisible(true);
        f.add(l);
        f.setVisible(true);
    }
}

Answer 1

1. are you using a gui class or you are writing its code into a main class
   what is in your code is that you are writing its code so easy way is to just drag and drop try this link for normal jframes gui eclipse gui

about the picture into jframe is easy one all what you have to do is 1. create a label by setting its size as you want on the jframe by dragging and dropping only 2. follow the pictures

3. then you browser for your picture you want

4. select the picture and its done
   

Hope it helps

Answer 2

Make sure the path to your image is valid. All I did was point to a valid image on my PC and the code practically worked. There were a few things added and organized below.

import java.awt.Color;
import javax.swing.*;

public class Walk {
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() { // Safety first...
            @Override
            public void run() {
                String path = "C:\\Path\\To\\Image.png"; // Make sure it's correct
                JFrame frame = new JFrame("Study");
                JLabel label = new JLabel(new ImageIcon(path));

                frame.setSize(3000, 1000);
                frame.getContentPane().setBackground(Color.white);
                frame.getContentPane().add(new JLabel("test", JLabel.CENTER));

                label.setBounds(100, 100, 100, 100);
                label.setVisible(true);

                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.add(label);
                frame.pack(); // Pack the frame's components.
                frame.setVisible(true);
            }
        });
    }
}

To make sure both labels show up, provide a layout and add them accordingly.

import java.awt.*;
import javax.swing.*;

public class Walk {
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                String path         = "C:\\Path\\To\\Image.png"; // Make sure it's correct
                JFrame frame        = new JFrame("Study");
                Container container = frame.getContentPane();
                JLabel imageLbl     = new JLabel(new ImageIcon(path));
                JLabel textLbl      = new JLabel("test");

                frame.setLayout(new BorderLayout());
                frame.setSize(3000, 1000);

                imageLbl.setBounds(100, 100, 100, 100);
                imageLbl.setVisible(true);

                container.setBackground(Color.WHITE);
                container.add(textLbl, BorderLayout.NORTH);
                container.add(imageLbl, BorderLayout.CENTER);

                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.pack();
                frame.setVisible(true);
            }
        });
    }
}