Can some one help me. I dont know why its not letting me use void here

using UnityEngine;
using System.Collections;

 public class nextlvl : MonoBehaviour {

	public void PlayScene (int loadThisScene) 

	void OnTriggerEnter2D(Collider2D other) {
		Application.LoadLevel (loadThisScene);
	}
}

PlayScene needs curly braces.

 public void PlayScene (int loadThisScene) { }