Explorer class
public Explorer(… , int stamina, …) { …
if (stamina >=0)
staminaPoints
= stamina;
else
staminaPoints
= 0; …
}
public void takeHit (int hitStrength){
if (hitStrength <=
staminaPoints)
staminaPoints
= staminaPoints - hitStrength;
else
staminaPoints
= 0;
}