private void connButtonActionPerformed( java.awt.event.ActionEvent evt) { // GEN-FIRST:event_connButtonActionPerformed if (!ipBox.getSelectedItem().toString().isEmpty() && !portBox.getText().isEmpty() && !versionBox.getText().isEmpty()) { ys.ip = ipBox.getSelectedItem().toString(); ys.port = portBox.getText(); ys.version = versionBox.getText(); try { if (!ys.connected) ys.connect(); else ys.disconnect(); } catch (IOException ex) { ex.printStackTrace(); } if (!ys.connected) connButton.setText("Connect!"); else connButton.setText("Disconnect!"); } } // GEN-LAST:event_connButtonActionPerformed