How to move Swing components from JFrame to JScrollPane?

Question

I have almost completed my Java application designed in Netbeans using JFrame . The mistake I have made is that I have put all my components directly on the frame rather than a JPanel . Now I want to make the frame scrollable, but I don't know how I can transfer all my components to a scroll pane from the frame. Any other way of making the frame scrollable?

Answer 1

Use the following code

JScrollPane pane = new JScrollPane(getContentPane(),
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, 
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
  this.setContentPane(pane);

and add a preferred size to your content pane

setPreferredSize(new Dimension(900, 900));

I got the same problem and the above code worked for me.