diff --git a/src/main/java/app/service/DialogBoxes.java b/src/main/java/app/service/DialogBoxes.java
index 9a2e064..4c59f7b 100644
--- a/src/main/java/app/service/DialogBoxes.java
+++ b/src/main/java/app/service/DialogBoxes.java
@@ -5,6 +5,8 @@ import javafx.scene.control.Alert.AlertType;
 
 public class DialogBoxes {
 
+  private DialogBoxes() {}
+
   public static void showErrorMessage(String errorMessage) {
       Alert error = new Alert(AlertType.ERROR);
       error.setContentText(errorMessage);
diff --git a/src/main/java/app/service/FileOperations.java b/src/main/java/app/service/FileOperations.java
index 35d53da..f236f78 100644
--- a/src/main/java/app/service/FileOperations.java
+++ b/src/main/java/app/service/FileOperations.java
@@ -14,7 +14,8 @@ import javafx.stage.Stage;
 
 public class FileOperations {
 
-  // FIXME: This class contains bugs when opening fiies and folders.
+  private FileOperations() {}
+
   // TODO: Needs documentation and cleanup
   // TODO: This class needs to be extensively error checked
 
diff --git a/src/main/java/app/service/FiletreeOperations.java b/src/main/java/app/service/FiletreeOperations.java
index 832d76b..b8bb21d 100644
--- a/src/main/java/app/service/FiletreeOperations.java
+++ b/src/main/java/app/service/FiletreeOperations.java
@@ -20,6 +20,8 @@ public class FiletreeOperations {
 
   private static int iconSize = 20;
 
+  private FiletreeOperations() {}
+
   // TODO: Clean up code that is not in use
   // TODO: Error check for recursiveness, and files without icons
 
diff --git a/src/main/java/app/service/LanguageOperations.java b/src/main/java/app/service/LanguageOperations.java
index c3e2343..750330b 100644
--- a/src/main/java/app/service/LanguageOperations.java
+++ b/src/main/java/app/service/LanguageOperations.java
@@ -14,6 +14,8 @@ import app.model.ProgrammingLanguage;
  * that implements {@link app.model.ProgrammingLanguage ProgrammingLanguage}
  */
 public final class LanguageOperations {
+
+  private LanguageOperations() {}
   
   /**
    * Use a matcher to find the styleclass of the next match