Primary constructor body not allowed????? i don't see whats wrong?

i made this basic code and it keeps telling me that Primary constructor body not allowed and i can't seem to fix it.

using UnityEngine; using System.Collections;

public class buttonHIT : MonoBehaviour {

 public Text ButtText;
 public GameObject trapD;

 void Start () 
 {
     ButtText.enabled = false;
 }

 void OnTriggerEnter (Collider other);
 {
     if (other.gameObject.tag == "zone") 
     {
         ButtText.enabled = true;

         if (Input.GetKeyDown (KeyCode.p)) 
         {
             Destroy(trapD);
         }
     }
 }

 void OnTriggerExit (Collider other);
 {    
     if (other.gameObject.tag == "zone")
     {
         ButtText.enabled = false;
     }
 }

}