Jtable cells with addRow

I have a JTable which has a loop that adds rows with:

Code:

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model.addRow(new Object[]{"", add(readThis), fromArray[i], subjectArray[i], dateArray[i], "NA"});

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How can I put a checkbox into the row. If I try
add(checkboxname) it won't work. I also need to know how to make each cell uneditable except for the first column.

This should answer all your questions.

How to use JTable

Code:

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        public Class getColumnClass(int c)
        {
            return getValueAt(0, c).getClass();
        }

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I do not understand how that makes

new boolean ("false") into a checkbox yet new JButton("test") wont work