title: Java Problem using GridLayout
body: <p>I want to have a 3x3 grid layout structured like this:</p>
  
  <pre><code> _ _ _ _ _ _ _ _ _ _ _ _
  |        Label         |
  | Button Button Button |
  |       TextArea       |
  |_ _ _ _ _ _ _ _ _ _ _ |
  </code></pre>
  
  <p>But the layout is broken.</p>
  
  <pre><code>    public static void main(String[] args){
      JFrame frame = new JFrame("title");
      frame.setSize(400,500);
      frame.setVisible(true);
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  
      GridLayout layout = new GridLayout(3,3);
  
      JPanel pan0 = new JPanel();
      JPanel pan1 = new JPanel();
      JPanel pan2 = new JPanel();
  
      pan0.setLayout(layout);
      GridBagConstraints c = new GridBagConstraints();
  
      JLabel title = new JLabel("title");
      title.setFont(new Font("Serif", Font.BOLD, 40));
      c.gridx = 0;
      c.gridy = 0;
      c.gridwidth = 3;
      pan0.add(title, c);
  
      JButton b1 = new JButton("button1");
      c.gridx = 0;
      c.gridy = 1;
      c.gridwidth = 1;
      pan0.add(b1, c);
  
      JButton b2 = new JButton("button2");
      c.gridx = 1;
      c.gridy = 2;
      c.gridwidth = 1;
      pan0.add(b2, c);
  
      JButton b3 = new JButton("button3");
      c.gridx = 2;
      c.gridy = 3;
      c.gridwidth = 1;
      pan0.add(b3, c);    
  
      TextArea text1 = new TextArea(15,40);
      c.gridx = 2;
      c.gridy = 0;
      c.gridwidth = 3;
      pan0.add(text1, c);
  
      frame.add(pan0);
      frame.pack();
  
    }
  }
  </code></pre>