Re: Help on setting size of JFrame?

I'm trying to develop a slider control for an application. The slider
would be in a new Window. I can't seem to set the size of it. Here
is the code. Setting the location works, but not the size. In this
example SliderDemo2 is a class that extends JPanel. What am I doing
wrong? I've tried setting the size of the JPanel too, without
success.

public static void createAndShowGUI() {
       //Create and set up the window.
      JFrame frame = new JFrame("SliderDemo");
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      Wrapper.slider = new SliderDemo2();
      frame.setLocation(600,300);
      Dimension minSize = new Dimension(400,200);
      frame.setMinimumSize(minSize);

      //Add content to the window.
      frame.add(Wrapper.slider, BorderLayout.WEST);

      //Display the window.
      frame.pack();
      frame.setVisible(true);

  }