update

src/main/java/Snake/GameView.java

@@ -21,6 +21,8 @@ public class GameView extends JPanel
         this.gridSize = gridSize;
     }
 
+    public void addView(Drawable view) {views.add(view);}
+
     public int getGridSize()
     {
         return gridSize;

src/main/java/Snake/Window.java

@@ -1,8 +1,45 @@
 package Snake;
 
 import javax.swing.*;
+import java.awt.*;
 
 public class Window extends JFrame
 {
+    private GameView gameView;
+
+    private final JButton startBtn;
+
+    private final JButton pauseBtn;
+
+    public Window(int viewSize, int gridSize)
+    {
+        super();
+        setTitle("Snake");
+        getContentPane().setLayout(new BoxLayout(getContentPane(), BoxLayout.Y_AXIS));
+
+        gameView = new GameView(viewSize, gridSize);
+        startBtn = new JButton();
+        pauseBtn = new JButton();
+        startBtn.setText("Start Game!");
+        pauseBtn.setText("Pause Game!");
+
+        final JPanel buttons = new JPanel();
+        buttons.setLayout(new BoxLayout(buttons, BoxLayout.X_AXIS));
+        buttons.add(startBtn);
+        buttons.add(Box.createRigidArea(new Dimension(5, 0)));
+        buttons.add(pauseBtn);
+
+        add(gameView);
+        add(Box.createVerticalStrut(10));
+        add(buttons);
+        add(Box.createVerticalStrut(10));
+
+        setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
+        setResizable(false);
+        pack();
+        setLocationRelativeTo(null);
+        setVisible(true);
+    }
+
 
 }