pack specifies whether all controls in the layout take
their preferred size. If pack is false, all controls will
have the same size which is the size required to accommodate the
largest preferred height and the largest preferred width of all
the controls in the layout.
pack specifies whether all controls in the layout take their preferred size. If pack is false, all controls will have the same size which is the size required to accommodate the largest preferred height and the largest preferred width of all the controls in the layout.
The default value is true.