How to remove a JTable column?

Question

Java

The question may be incorrect, but not the point. The problem is this.
- There is a JTable;
- There is an array that I enter into the JTable;
- Next, I carry out manipulations, after which the array is reduced by one by the number of columns.
In the picture, it can be seen that the last column is not filled.

- The problem is how to make the JTable shrink.
Just ideas or a little explanation in words are needed. Head in the evening reduces its performance.