i am novice in oop & java, i have a problem with this error :
"Exception in thread "main" java.lang.NullPointerException"
when i want to try create new object, these lines of my code cause it
public void AddManager (Manager m){
managers[managerIndex++] = m;(in my manager class &)
n= new Manager(manName,salary,numberProject);
boss.AddManager(n); (in my main class)
plz help me
