i keep getting error code CS0103

Hi, i am new to Unity so sorry if this is an obvious question but i keep getting this error message: Assets/Healthbar.cs(17,17): error CS0103: The name `addjustcurHealth' does not exist in the current context I have tried to fix it but more errors keep popping up this is the script:

using UnityEngine; using System.Collections;

public class Healthbar : MonoBehaviour { public int maxHealth = 100; public int curHealth = 100;

 public float healthBarLength;
 
 //Use this for inialization
 void start () {
     healthBarLength = Screen.width / 2;
 }
 
 //Update is called once per frame
 void update () {
     addjustcurHealth(0);
 }
 
 void OnGUI() {
     GUI.Box(new Rect( 10, 10, healthBarLength, 20),curHealth + "/" + maxHealth);
 }
 
 public void AddjustCurrentHealth(int adj) {
     curHealth += adj;
     
     healthBarLength = (Screen.width / 2) * (curHealth / (float)maxHealth);
 }

}

i am using it in an rpg if this makes and difference and have connected it to the first person controller. Thanks