Setting the size of a ContentPane (inside of a JFrame)

Question

I want to set the size of a JFrame such that the contentPane is the desired size. JFrame.setSize() doesn\'t take the window decorations into account, so the contentPane is

Answer 1

In Java 5 and later this is the easiest method:

JFrame frame = new JFrame("Content Pane Size Example");
frame.getContentPane().setPreferredSize(new Dimension(400, 300));
frame.pack();
frame.setVisible(true);

As always the above should be executed in the EDT.

Answer 2

If you want to do it on your own then in your Frame type:

this.setLayour(null);
this.pack();
Insets insets = this.getInsets();
this.setBounds(0,0, insets.left + width + insets.right, insets.top + height + insets.bottom);
this.setLocationRelativeTo(null);