Initial commit

Display.java

@@ -0,0 +1,20 @@
+import javax.swing.*;
+
+public class Display {
+    public static void main(String[] args) {
+        int boardWidth = 400;
+        int boardHeight = 400;
+        int tileSize = 20;
+
+        JFrame game = new JFrame();
+        game.setSize(boardWidth, boardHeight);
+        game.setVisible(true); 
+        game.setLocationRelativeTo(null);
+        game.setResizable(false);
+
+        Platformer platformer = new Platformer(boardWidth, boardHeight, tileSize);
+        game.add(platformer);
+        game.pack();
+        platformer.requestFocus();
+    }
+}