I have a JTable which I need to remove and add column.



My remove column code is :



DefaultTableColumnModel columnMod;

columnMod.removeColumn(columnMod.getColumn(1));



My add column code is :



DefaultTableModel tableMod;

tableMod.addColumn("three");



My problem is :
say my table has 2 columns initially

"one" "two"

after removeColumn(), the column will disappear from the JTable. like this

"one"

but when I addColumn() later, the removed column will appear again. like this

"one" "two" "three"


I think the problem is DefaultTableColumnModel is used to removeColumn but DefaultTableModel is used to addColumn, resulted in some kind of discrepancy, how to go about this? Any help appreciated.