private void divideActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_divideActionPerformed
        firstNum = (Double.parseDouble(String.valueOf(display.getText())));
        display.setText("");
        devideClick = 1;
        decimalClick = 0;        // TODO add your handling code here:
    }//GEN-LAST:event_divideActionPerformed