Java SE (Java Platform, Standard Edition)

Hi everyone.

I'm trying to create a sliding effect for a jPanel. The idea is that the user clicks a button and it scrolls left or right within another jPanel , as if it's rotating.

The actual moving part is easy, however I want it to actually slide rather than just move.

I have tried sleeping the thread for 10ms, moving the JPanel left one pixel, then repainting the panel - looped 70 times. however it seems that it doesn't physically move the jPanel until the loop has finished.

Here's the code I have:

    @Action
    public void SlideLeft() {
        if(jPanel1.getLocation().getX() < 0){
            for(double i = 1; i <= 70.0; i++){
                scroll(jPanel1, 1);
                try{
                    Thread.sleep(10);
                }catch(Exception e){
                    System.out.println(e.getMessage());
                }
            }
        }
    }
    public void scroll(javax.swing.JPanel what, int amount){
        Point temp = what.getLocation();
        temp.setLocation(temp.getX() + amount, temp.getY());
        what.setLocation(temp);
        jPanel2.repaint();
    }

jPanel1 is the panel I want to move within jPanel2 (which hides the contents of jPanel1 which aren't in the bounds of jPanel2).

How can I create a sliding effect for this?
(I'm quite new to Java, but not to programming in general).