title: Setting columnWidth and rowHeight in GridBagLayout
body: <p>How to set columnWidth and rowHeight in GridBagLayout? Is it gridWidth and gridHeight?  </p>
  
  <p><img src="https://i.stack.imgur.com/pd6Sb.png" alt="enter image description here"></p>
  
  <p>How this column Widths can be specified dyanmically?</p>