I added the sound

OOP_1A2_Project/bin/.gitignore

@@ -0,0 +1,2 @@
+/backend/
+/windowInterface/

OOP_1A2_Project/src/backend/Sound.java

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+package backend;
+
+
+import javax.sound.sampled.AudioInputStream;
+import javax.sound.sampled.AudioSystem;
+import javax.sound.sampled.Clip;
+import javax.sound.sampled.LineUnavailableException;
+import javax.sound.sampled.UnsupportedAudioFileException;
+import java.io.File;
+import java.io.IOException;
+
+
+public class Sound {
+    private static Sound instance;
+    private Clip moveSound;
+    private static final String SOUND_FILE_PATH = "movesound.wav";
+    
+    private Sound() {
+        loadSound();
+    }
+    
+    public static Sound getInstance() {
+        if (instance == null) {
+            instance = new Sound();
+        }
+        return instance;
+    }
+    
+    private void loadSound() {
+        try {
+            File soundFile = new File(SOUND_FILE_PATH);
+            AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(soundFile);
+            moveSound = AudioSystem.getClip();
+            moveSound.open(audioInputStream);
+        } catch (UnsupportedAudioFileException | IOException | LineUnavailableException e) {
+            System.err.println("Error loading sound: " + SOUND_FILE_PATH + " - " + e.getMessage());
+        }
+    }
+    
+    public void playMoveSound() {
+        if (moveSound != null) {
+            // Stop the clip if it's already playing
+            if (moveSound.isRunning()) {
+                moveSound.stop();
+            }
+            // Reset clip to beginning
+            moveSound.setFramePosition(0);
+            // Play the sound
+            moveSound.start();
+        }
+    }
+
+    
+    public void cleanup() {
+        if (moveSound != null) {
+            moveSound.close();
+        }
+    }
+}