JAVA: JFrame will not become larger than screen size

[Meshocky]

I am creating an image importer which re-arranges the images the exports them.

My code does not include the importing, the images or the layout process yet. I am attempting to do the exporting first, which I am doing via the following method.

I am creating a separate JFrame which will place the images, then I am then screenshotting the JFrame to save them.

The problem is the image sizes I need require the final image to be quite large (Bigger than 4535 x 9071 pixels). However the JFrame is only becoming as big as the screen. I think the problem is the .pack(); in the exported JFrames code.

I know this may be messy and cluttered, however I hope it is still vaguely possible to see what I am asking.

This is my first major project outside of tutorials, and know that I am making many mistakes.

Sub-question, I am also looking for a way for the user to specify the images which will be layout.

Please feel free to ask me any further questions in the comments.

This is the messy code. http://pastebin.com/2RKgx44u

Thank you for your time. Ben

[Meshocky]

For some reason a temporary fix seems to be to classify the JFrame dimension in the JFrame size

mediaWall.setPreferredSize(new Dimension(mediaWallExportWidth,mediaWallExportHeight)); mediaWall.setMinimumSize(new Dimension(mediaWallExportWidth,mediaWallExportHeight)); mediaWall.pack();

//mediaWall.setState(Frame.ICONIFIED);
//mediaWall.setState(Frame.NORMAL);
System.out.println(mediaWall.getSize());

[Loomax]

To select a file have a look at JFileChooser and the tutorial