diff --git a/src/main/java/info/augendre/caps_extractor/MainPanel.java b/src/main/java/info/augendre/caps_extractor/MainPanel.java
index 0c7e864..8aff1d1 100644
--- a/src/main/java/info/augendre/caps_extractor/MainPanel.java
+++ b/src/main/java/info/augendre/caps_extractor/MainPanel.java
@@ -8,8 +8,6 @@ import javax.swing.*;
 import java.awt.*;
 import java.awt.datatransfer.Clipboard;
 import java.awt.datatransfer.StringSelection;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
 import java.awt.event.KeyAdapter;
 import java.awt.event.KeyEvent;
 import java.util.ResourceBundle;
@@ -52,7 +50,7 @@ public class MainPanel {
         });
     }
 
-    private String extractUpperCase(String s) {
+    public String extractUpperCase(String s) {
         String upperCase = "";
         for (int i = 0; i < s.length(); i++) {
             char current = s.charAt(i);
diff --git a/src/main/java/info/augendre/caps_extractor/MainWindow.java b/src/main/java/info/augendre/caps_extractor/MainWindow.java
index 3819bc9..6612248 100644
--- a/src/main/java/info/augendre/caps_extractor/MainWindow.java
+++ b/src/main/java/info/augendre/caps_extractor/MainWindow.java
@@ -1,7 +1,6 @@
 package info.augendre.caps_extractor;
 
 import javax.swing.*;
-import java.util.ResourceBundle;
 
 /**
  * Created by Gabriel.
@@ -12,7 +11,7 @@ public class MainWindow extends JFrame {
         this.setup();
     }
 
-    public JMenuBar createMenu() {
+    private JMenuBar createMenu() {
         JMenuBar menuBar = new JMenuBar();
         JMenu help = new JMenu(I18nSupport.translate("menu.help"));
         menuBar.add(help);
@@ -23,7 +22,7 @@ public class MainWindow extends JFrame {
         return menuBar;
     }
 
-    public void setup() {
+    private void setup() {
         MainPanel mainPanel = new MainPanel();
         JPanel contentPanel = mainPanel.getContentPanel();
         this.setJMenuBar(createMenu());