diff -r 576e7a2861ae -r 369903afbb29 src/main/java/de/uapcore/sudoku/Sudoku.java
--- a/src/main/java/de/uapcore/sudoku/Sudoku.java	Sat Jul 25 14:01:28 2020 +0200
+++ b/src/main/java/de/uapcore/sudoku/Sudoku.java	Sat Jul 25 15:29:51 2020 +0200
@@ -30,11 +30,13 @@
 import java.awt.*;
 
 /**
- *
- * @author mike
+ * Main class of the application.
  */
 public final class Sudoku extends JFrame {
-    
+
+    /**
+     * Constructs the Sudoku main window.
+     */
     public Sudoku() {
         super("Sudoku");
         
@@ -61,6 +63,8 @@
     }
 
     /**
+     * Main method starting the Sudoku solver.
+     *
      * @param args the command line arguments
      */
     public static void main(String[] args) {