private void editButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_editButtonActionPerformed
   int selectedRow = table.getSelectedRow();
   if (selectedRow >= 0) {
     parent.editPressed();
   }
 } // GEN-LAST:event_editButtonActionPerformed
 private void removeButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_removeButtonActionPerformed
   int selectedRow = table.getSelectedRow();
   if (selectedRow >= 0) {
     String title = table.getValueAt(selectedRow, 0).toString();
     String category = table.getValueAt(selectedRow, 1).toString();
     int runningTime = Integer.parseInt(table.getValueAt(selectedRow, 2).toString());
     int yearReleased = Integer.parseInt(table.getValueAt(selectedRow, 3).toString());
     double price = Double.parseDouble(table.getValueAt(selectedRow, 4).toString());
     parent.removePressed(new Dvd(title, category, runningTime, yearReleased, price));
   }
 } // GEN-LAST:event_removeButtonActionPerformed
 private void searchButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_searchButtonActionPerformed
   parent.searchPressed();
 } // GEN-LAST:event_searchButtonActionPerformed
 private void saveButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_saveButtonActionPerformed
   parent.saveFilePressed();
 } // GEN-LAST:event_saveButtonActionPerformed
 private void listAllByYearButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_listAllByYearButtonActionPerformed
   parent.listAllByYearPressed();
 } // GEN-LAST:event_listAllByYearButtonActionPerformed
 private void exitButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_exitButtonActionPerformed
   parent.exit();
 } // GEN-LAST:event_exitButtonActionPerformed
 private void addButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_addButtonActionPerformed
   parent.addPressed();
 } // GEN-LAST:event_addButtonActionPerformed
 private void loadButtonActionPerformed(
     java.awt.event.ActionEvent evt) { // GEN-FIRST:event_loadButtonActionPerformed
   parent.loadFilePressed();
 } // GEN-LAST:event_loadButtonActionPerformed