How to use JTable

Hi Experts,
Please let me know how to rerange the column with of JTable in the code.
I have the default table as below:
STT    Menu   Series     Product  
1          D      12345..   LC27

The leght of series is 14, so I want to rerange the Series column or what the column I need with the width param.

I need to add a check box to cell of rows of JTable
I do as below- see at line 2:

                data[rowIndex][0] = Integer.toString(seriObj.getSeqNumber());

                data[rowIndex][1] =new Boolean(false);   //Bolean value to add a check box to cell

                data[rowIndex][2] = seriObj.getSeriCode();
                data[rowIndex][3] = seriObj.getProductName();

but it cause me the java.lang.ArrayStoreException: java.lang.Boolean exception

Thank you in advance!

It is correct to add a check box to cell? please let me know the way to do this?