JTable Set Cell color by specific value

Question

I am trying to write a method that for the given parameters (value, color) sets the color against the background of a cell whose value is equal to cellValue.

What my method actually does is it sets the background color of the cells for the whole row and when I select the row in the table and I want the method to set only the color in a specific column (where cellValue is equal to the value) every time I call the method .

void setCellBackgroundColor(boolean cellValue, final Color color) { List<List<Object>> data = tView.getTTableModel().getData(); for (int row = 0; row < data.size(); row++) { for (int col = 0; col < data.get(row).size(); col++) { TableCellRenderer renderer = tView.table.getCellRenderer(row, Col); Component component = tView.table.prepareRenderer(renderer, row, col); boolean bValue = TDataTypeRenderer.parseIntoRealValue( data.get(row).get(col) ) ); if (bValue == cellValue) { component.setBackground(color); } } 

Answer 1

when I select a row in a table and want the method to set only the color in a specific column

Try using the overridden prepareRenderer() method suggested by @mKorbel.

code example:

 Object[] columnNames = { "A", "B", "C", "D" }; Object[][] data = { { "abc", new Double(850.503), 53, true }, { "lmn", new Double(36.23254), 6, false }, { "pqr", new Double(8.3), 7, false }, { "xyz", new Double(246.0943), 23, true } }; JTable table = new JTable(data, columnNames) { @Override public Component prepareRenderer(TableCellRenderer renderer, int row, int col) { Component comp = super.prepareRenderer(renderer, row, col); Object value = getModel().getValueAt(row, col); if (getSelectedRow() == row) { if (value.equals(false)) { comp.setBackground(Color.red); } else if (value.equals(true)) { comp.setBackground(Color.green); } else { comp.setBackground(Color.white); } } else { comp.setBackground(Color.white); } return comp; } }; 

When selecting the first row:

When selecting the second row.

More details

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EDIT

According to your last comment

Is it possible to change the color by cutting (selecting) a row in a table?

Yes, just remove the check for the selected row.

  Object value = getModel().getValueAt(row, col); if (value.equals(false)) { comp.setBackground(Color.red); } else if (value.equals(true)) { comp.setBackground(Color.green); } else { comp.setBackground(Color.white); }