diff --git a/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/persistence/impl/sqlite/WorkingDayRepositorySQLiteImpl.java b/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/persistence/impl/sqlite/WorkingDayRepositorySQLiteImpl.java
index 9bad23e..d7d967d 100644
--- a/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/persistence/impl/sqlite/WorkingDayRepositorySQLiteImpl.java
+++ b/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/persistence/impl/sqlite/WorkingDayRepositorySQLiteImpl.java
@@ -10,6 +10,7 @@ import org.nanoboot.utils.timecalc.persistence.api.WorkingDayRepositoryApi;
 
 import java.util.List;
 import org.nanoboot.utils.timecalc.app.TimeCalcException;
+import org.nanoboot.utils.timecalc.utils.common.Utils;
 
 /**
  * @author Robert Vokac
@@ -27,6 +28,9 @@ public class WorkingDayRepositorySQLiteImpl implements WorkingDayRepositoryApi {
     public void create(WorkingDay workingDay) {
         System.out.println("Going to create: " + workingDay.toString());
 
+        if(!Utils.askYesNo(null, "Do you want to create new Working Day? " + workingDay, "Creation of newWorking Day")) {
+            return;
+        }
         StringBuilder sb = new StringBuilder();
         sb
                 .append("INSERT INTO ")
@@ -124,8 +128,12 @@ public class WorkingDayRepositorySQLiteImpl implements WorkingDayRepositoryApi {
             create(workingDay);
             return;
         }
+
         System.out.println("Going to update: " + workingDay.toString());
 
+        if(!Utils.askYesNo(null, "Do you want to update this Working Day? " + workingDay, "Update of Working Day")) {
+            return;
+        }
         StringBuilder sb = new StringBuilder();
         sb
                 .append("UPDATE ")
diff --git a/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/utils/common/Utils.java b/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/utils/common/Utils.java
index aab7adb..20820e8 100644
--- a/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/utils/common/Utils.java
+++ b/modules/time-calc-app/src/main/java/org/nanoboot/utils/timecalc/utils/common/Utils.java
@@ -1,9 +1,12 @@
 package org.nanoboot.utils.timecalc.utils.common;
 
 import org.nanoboot.utils.timecalc.app.Main;
+import org.nanoboot.utils.timecalc.app.TimeCalcException;
 import org.nanoboot.utils.timecalc.swing.common.Toaster;
 
+import javax.swing.JOptionPane;
 import java.awt.Color;
+import java.awt.Component;
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileOutputStream;
@@ -26,8 +29,8 @@ import java.util.Collections;
 import java.util.List;
 import java.util.jar.Attributes;
 import java.util.jar.Manifest;
+import java.util.stream.Collectors;
 import java.util.stream.Stream;
-import org.nanoboot.utils.timecalc.app.TimeCalcException;
 
 /**
  * @author Robert Vokac
@@ -179,7 +182,7 @@ public class Utils {
         try ( FileSystem fs = FileSystems.newFileSystem(uri, Collections.emptyMap());Stream<Path> stream = Files.walk(fs.getPath(folder))) {
             result = stream
                     .filter(Files::isRegularFile)
-                    .toList();
+                    .collect(Collectors.toList());
         } 
 
         return result;
@@ -228,4 +231,19 @@ public class Utils {
     public static void showNotification(Exception e) {
         showNotification("Error: " + e, 15000, 200);
     }
+
+    public static boolean askYesNo(Component frame, String question, String title) {
+        int result = JOptionPane
+                .showConfirmDialog(frame, question,
+                        title,
+                        JOptionPane.YES_NO_OPTION,
+                        JOptionPane.QUESTION_MESSAGE);
+        if (result == JOptionPane.YES_OPTION) {
+            return true;
+        } else if (result == JOptionPane.NO_OPTION) {
+            return false;
+        } else {
+            return false;
+        }
+    }
 }