Content Pane?

[Dillinger4]

Does anyone know what a Content Pane is? Can a component
be added to a JFrame directly or do i have to add it to a content pane first? Im just not sure about the purpose of a Content Pane.

[Dillinger4]

For instance this code produces a runtime error. Do i have to
add the components to a panel then add the panel to a Content Pane then add the content pane to a JFrame? Writing GUI's in Java can be a real pain in the ass.

  import java.awt.*; 
  import javax.swing.*;
  import java.awt.event.*; 
      
   
  public class Test{ 
   public static void main(String[] args){
       JFrame jf = new JFrame("A Frame");  
       JPanel jp = new JPanel();
    
       JButton jb = new JButton("A Button"); 
       JTextArea jta1 = new JTextArea(); 
       JTextArea jta2 = new JTextArea();
  
       jp.setLayout(new GridLayout(1,2));
       jp.add(jb);  
       jp.add(jta1);
       jp.add(jta2);
        
       
      jf.add(jp); 
      jf.setSize(600,300);
      jf.setVisible(true);  
 
     jf.addWindowListener(new WindowAdapter(){
        public void windowClosing(WindowEvent e){
           System.exit(0); 
        }
      });
  }
 }

[Dillinger4]

Never mind i got it.