Using TableCellRenderer and getColumnClass together

Question

when i add getcolumn class to my abstracttablemodel, i couldnt use my custom TableCellRenderer to set background color. (i use this for sorting,alignment numeric columns)

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Answer 1

Use TableColumn#setCellRenderer() to draw individual values for each column.

Just add below lines in your code

MyCustomTableCellRenderer cellRenderer = new MyCustomTableCellRenderer();
for (int i = 0; i < table.getColumnCount(); i++) {
    table.getColumnModel().getColumn(i).setCellRenderer(cellRenderer);
}

instead of

table.setDefaultRenderer(Object.class, new MyCustomTableCellRenderer());

and your problem will be solved.

Note: You are using DefaultTableCellRenderer that will apply on cell hence use setCellRenderer() instead of setDefaultRenderer().

screenshot: (one row is selected)