!7

p-substance {
  JPanel panel = new JPanel(new AbstractLayoutManager {
    public void layoutContainer(Container parent) {
      Dimension size = parent.getSize();
      int y = 10;
      for (Component c : parent.getComponents()) {
        int h = c.getPreferredSize().height;
        c.setBounds(10, y, size.width-20, h);
        y += h + 10;
      }
      preferredSize = componentsBoundingSize(parent, 10);
    }
  });
  
  for i to 10:
    panel.add(jtextfield());
  print("components added");
    
  showFrame(panel);
}