Setting color for cells in a particular column of a jtable

Hi, I know how to set the color for a cell in a column if the cell contains an Integer object and if I have default Integers already in the JTable when I begin. However I want the JTable to look blank at the beginning. As I can't make an Integer object invisible on the JTable I need to specify the colum in which I want the cells to change color in. I want to specify the column some how and then when the table later has Integers in it i can do a comparison to decide whether i want to change the color or not. Does anyone know how I will do this.
Please HELP.

1) You need to set the tooptip text on the renderer for the column (yourTable.getColumnModel().getColumn(...).getHeaderRenderer()).
2) The header is a separate component to the table. When you add a table to a scroll pane it automatically adds the header to the scroll pane too. You can get the component (yourTable.getTableHeader()) and add it to your own container if you wish.

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Setting color for cells in a particular column of a jtable

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