title: Adding an image to JPanel within JLabel
body: <p>I'm new to Java, and I'm trying to make an JFrame, with a JPanel inside it and an image inside a JLabel. Then by adding the JLabel to the JPanel it must work right? However, this is the way it's done on docs.oracle.com...</p>
  
  <p>This is the code:</p>
  
  <pre><code>import java.awt.BorderLayout;
      import java.awt.event.ActionEvent;
      import java.awt.event.ActionListener;
      import javax.swing.*;
  
      public class Interface {
  
          private JPanel panel;
          private JPanel buttonPane;
          private JLabel label;
          private JLabel label2;
          private JTextField textfield;
          private JTextField textfield2;
          private JTextField textfield3;
          private JTextField textfield4;
          private JTextField textfield5;
          private JButton button;
          private JButton button2;
          private JButton button3;
          private JButton button4;
          private JButton button5;
          private JButton button6;
  
          public static void main(String[] args) {
              new Interface();
          }
  
          public Interface() {
              JFrame frame = new JFrame("Vormen");
              frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
              frame.setSize(600, 300);
              frame.setLocationRelativeTo(null);
  
              panel = new JPanel();
              buttonPane = new JPanel();
              button = new JButton("cirkel");
              button.addActionListener(new ActionListener() {
                  @Override
                  public void actionPerformed(ActionEvent e) {     
      JLabel label3 = new JLabel(new ImageIcon("images/cirkel.png"));
              panel.add(label3);
              panel.revalidate();
              panel.repaint();
          buttonPane.add(button);
          buttonPane.add(button2);
          buttonPane.add(button3);
  
  
          frame.add(buttonPane, BorderLayout.NORTH);
          frame.add(panel);
          frame.setVisible(true);
  
      }
  }
  </code></pre>