Need help with pail (where to place items)

I hooked my plugin into pail and before i did that i testet a single class to see how to do it.
small code i used:

Code:

addElement(contentPanel, jLabel1,0,0,100,20);
jTextField1 = new JTextField();
addElement(contentPanel, jTextField1,0,20,100,20);
jButton1 = new JButton("Click Me");
addElement(contentPanel, jButton1,0,100,100,20);

worked and the items where lined up but in the pail tab using:

Code:

addElement(panel, jLabel1,0,0,100,20);
        jLabel2 = new JLabel("Set the Motd");
        addElement(panel, jLabel2,0,30,100,20);
        jTextField1 = new JTextField();
        addElement(panel, jTextField1,0,50,100,20);
        jButton1 = new JButton("Save");
        addElement(panel, jButton1,0,75,100,20);

they got centered and on one single line.
Anyone know how to fix and get them on a seperat line?

Screenshot: What i want:

What i get:


EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Sorry that I am not going to give anything solid, but you should take a look at Java Layouts.
Here's the link:
http://docs.oracle.com/javase/tutorial/uiswing/layout/index.html

 

Found out...
just needed:
panel.setLayout(null);