private void printTotals() { if (m_bunitsok && m_bpriceok) { m_jSubtotal.setText(m_oLine.printSubValue()); m_jTotal.setText(m_oLine.printValue()); m_jButtonOK.setEnabled(true); } else { m_jSubtotal.setText(null); m_jTotal.setText(null); m_jButtonOK.setEnabled(false); } }