int vColIndex = 0;
TableColumn col = jTable1.getColumnModel().getColumn(vColIndex);
col.setCellRenderer(new MyTableCellRender());

public class MyTableCellRender extends JLabel implements TableCellRenderer {
       public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int rowIndex, int vColIndex) {

          Component cell = jTable1.getComponentAt(vColIndex, rowIndex);
                                                            // RETURNS THE TABLE INSTEAD OF THE CELL

          if(isSelected) {
             cell.setBackground(Color.YELLOW);              // CHANGE COLOR FOR ALL THE TABLE
          }

          if(hasFocus) {
          }

          setForeground(Color.red);
          setText(value.toString());
          System.out.println("Renderizando.");

          return this;
       }

       public void validate() {}
       public void revalidate() {}
       protected void firePropertyChange(String propertyName, Object oldValue, Object newValue) {}
       public void firePropertyChange(String propertyName, boolean oldValue, boolean newValue) {}
    }