title: Can i make a JTable column without borders?
body: <p>I have created a column with cells that contain a JTextArea + A JButton inside it, as you can see in the image below in Column 3 :</p>
  
  <p><img src="https://imgur.com/ElA0M.jpg" alt="alt text"></p>
  
  <p>But i have faced lots of problems with my CellRenderer and CellEditor when updating the cells values in that column, as my code is a bit complicated. So instead i want to replace that column with 2 columns. One column to be of <strong>normal String cells</strong> and the other to be of <strong>JButton cells</strong> but these 2 columns should have the same look as column 3 appears in the above image. <em>So my questions are</em> :</p>
  
  <p><strong>1. How can i merge the headers of the 2 columns together ?</strong></p>
  
  <p><strong>2. How can i remove the left borders of the JButtons column ?</strong></p>
  
  <p>If those are fixed, that way the 2 columns will have the same look as the above image + updating the cells values will be much easier.</p>
  
  <p><strong>-------------------------------- Edit : My code sample problems :</strong></p>
  
  <p>Ok guys ... You asked for it. My code is huge but if you can help me fix it, that would be perfect. I have created a running jar sample for my problem &amp; included my source code too. You can download it from here :</p>
  
  <p><a href="http://www.4shared.com/file/JTnv9ysk/table_problem_sample.html" rel="nofollow noreferrer">Jar sample</a></p>
  
  <p>The problem is that i use a button to allow sorting table rows(Move them up/down), but when i do this some of the moved cells values are not updated !</p>
  
  <p>You can see the following screenshot :
  <img src="https://imgur.com/AiN5k.png" alt="alt text">
  The problem is in the cell editor i am using ... But i can't fix it.</p>