Question

When I add columns to JTable, By default, they’re arranged from left to right.
e.g. if I add in this order (Left to right):

col1,col2,col3 

I will get:

+------+------+------+
| col1 | Col2 | Col3 |
+------+------+------+

But I want this:

+------+------+------+
| col3 | Col2 | Col1 |
+------+------+------+

How can I make a JTable that arrange columns from right to left?

Answer 1

setComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT) or applyComponentOrientation(ComponentOrientation.RIGHT_TO_LEFT) will do the trick.
Please refer to java doc for further clarifications

setComponentOrientation

applyComponentOrientation

Alternatively you can just reverse the arrays for column names array and
row data arrays.