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The first jsp page (send1.jsp) displays all data from the MySQL database, and consists of an edit button for each row.

Once the user clicks on the edit button for a particular row, the size...

Oh, it is actually for a puzzle game I am trying to code.. The game goes something like this.

An image divided up into pieces and randomized(haven't thought of how to randomize yet though) >...

Just curious, why does my previous reply require a moderator to accept ?

Did I do anything wrong ?

Did some research (link) and yup like what you said, it is because the JPanel isn't rendered yet.

I either have to do an override of via setPreferredsize() or paintComponent() to access the JPanel...

I believe the error is caused by
Image sc = wi.getScaledInstance(puzpiece.getWidth()/3,puzpiece.getHeight()/3, Image.SCALE_AREA_AVERAGING); after doing a debug in Netbeans.

The debug showed...