Agencement de composants dans un JScrollPane

          Sdescription=new JPanel();
		Sdescription.add(lab1);
                            panneau=new JSplitPane(
				JSplitPane.HORIZONTAL_SPLIT,true,
				SSintitules,Sdescription
							);
		setContentPane(panneau);

		panneau=new JSplitPane(
				JSplitPane.HORIZONTAL_SPLIT,true,
				SSintitules,lab1
							);
		setContentPane(panneau);

		description=new JPanel();
		description.add(lab1);
               Sdescription=new JScrollPane(description);
		
                            panneau=new JSplitPane(
				JSplitPane.HORIZONTAL_SPLIT,true,
				SSintitules,Sdescription
							);
		setContentPane(panneau);

JTextField textField = ...
JComboBox comboBox = ...
JButton button = ...

description=new JPanel(new GridBagLayout());
GridBagConstraints gBC = 
new GridBagConstraints();
gBC.gridx = 0;//colonnes
gBC.gridy = 1;//lignes
description.add(textField , gBC);
gBC.gridx = 1;
gBC.gridy = 0;
description.add(comboBox , gBC);
gBC.gridx = 1;
gBC.gridy = 1;
gBC.anchor = gBC.EAST;
description.add(button , gBC);
Sdescription=new JScrollPane(description);
panneau=new JSplitPane(
	JSplitPane.HORIZONTAL_SPLIT,true,
	SSintitules,Sdescription);
setContentPane(panneau);