private void VolumeCheckBoxActionPerformed( java.awt.event.ActionEvent evt) { // GEN-FIRST:event_VolumeCheckBoxActionPerformed // if user de-select volume of size if (!VolumeCheckBox.isSelected()) { // select the detail checkbox DetailSizeCheckBox.setSelected(true); // disable the volume text field VolumeTF.setEnabled(false); VolumeTF.setText(""); VolumeLabel.setText("Volume : "); // reenable the detail of size text field LengthTF.setEnabled(true); LengthLabel.setText("* Length : "); WidthTF.setEnabled(true); WidthLabel.setText("* Width : "); HeightTF.setEnabled(true); HeightLabel.setText("* Height : "); } else { // dis-select the detail checkbox DetailSizeCheckBox.setSelected(false); // empty the detail text field and disable it LengthTF.setText(""); LengthTF.setEnabled(false); LengthLabel.setText("Length : "); WidthTF.setText(""); WidthTF.setEnabled(false); WidthLabel.setText("Width : "); HeightTF.setText(""); HeightTF.setEnabled(false); HeightLabel.setText("Height : "); // reenable volume text field VolumeTF.setEnabled(true); VolumeLabel.setText("* Volume : "); } } // GEN-LAST:event_VolumeCheckBoxActionPerformed