title: IntelliJ GUI Form not appearing
body: <p>I'm making a simple weather app using IntelliJ and built in form designer. I have made and designed a form and edited the bound class file accordingly. When I actually run the code, the form I designed does now show up at all, in fact just the last line (maxtemp) is the only value that shows up on an empty white screen.</p>
  
  <p>P.S I am using Gradle to build, I have also set the GUI designer to use Java source code instead of byte code (since Gradle does not support the byte code)</p>
  
  <pre><code>import org.json.JSONException;
  import org.json.JSONObject;
  
  import javax.swing.*;
  import java.awt.*;
  
  
  public class Frame extends JFrame {
  
  // Get the API
  private API api = new API();
  
  // Form elements
  public JPanel mainPanel;
  public JLabel text;
  public JLabel category;
  public JLabel mintemp;
  public JLabel maxtemp;
  public JLabel link;
  
  
  public Frame() throws Exception, JSONException {
  
      initFrame();
  
  }
  
  public void initFrame() throws Exception, JSONException {
  
      // Get API response
      JSONObject wjson = api.connection();
  
      // Filter response and get data
      String[] data = api.respFilter(wjson);
  
  
      // Swing components
      mainPanel = new JPanel(new BorderLayout());
      text = new JLabel();
      category = new JLabel();
      mintemp = new JLabel();
      maxtemp = new JLabel();
      link = new JLabel();
  
  
      // Add to the frame
      add(mainPanel);
      add(text);
      add(category);
      add(mintemp);
      add(maxtemp);
  
  
      text.setText(data[0]);
      category.setText(data[1]);
      mintemp.setText(data[3]);
      maxtemp.setText(data[4]);
  
  
  }
  
  public static void main(String[] args) throws Exception, JSONException {
      JFrame app = new Frame();
      app.setTitle("Java-WeatherApp");;
      app.setSize(900, 600);
      app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      app.setLocationRelativeTo(null);
      app.setVisible(true);
  }
  
  }
  </code></pre>
  
  <p>I'm pretty new to Java and very new to the form builder on IntelliJ. Unfortunately I could not find any good tutorials on the form builder. Any help is appreciated!</p>