the code compiles but the page has Attempt to de-reference a null object.I tried system.assertequals so myTeacher and teacherSet is not null but myTea is null. it does not return error and i have no clue what went wrong. (hardcoded selectedSId for testing)
public void fetchTeacherInfo(){
selectedSId = 'a0P28000001pOBa';
for (student__c stud : [Select Id, name, first_name__c, parent__c, teacher_set__c from student__c WHERE Id = : selectedSId]){
teacherSet = stud.teacher_set__c;
}
for (teacher__c myTeacher : [Select Id, name, first_name__c, teacher_set__c, middle_name__c from teacher__c WHERE teacher_set__c = : teacherSet]){
myTea.add(myTeacher.id);
if (myTeacher != null)
{
// system.assertequals(myTea + 'test','test');
}
}
}