# -*- coding: utf-8 -*-
"""
@author: aeb1
"""
#import Addresse as a

#Aufgabe 1: Datentypen
a = -7                              #int
b = False                           #boolean
c = str(3.1)                        #str 
d = "Hallo"                         #str
#e = a.Adresse("Bahnhofstrasse", 2)  #Adresse 

#Aufgabe 2: Fallunterscheidung
def aufg2(a, b):
    if a < 3 or a > 8:
        print(str(a))
    elif len(b) > 1:
        print(b[0])
    else:
        print("0")
        
aufg2(1,[2,3])  #1
aufg2(3,[4,5])  #4
aufg2(4,[2])    #0
aufg2(8,[4])    #0

#Aufgabe 3: Range
def aufg3(a,b,c):
    liste=list()
    for ele in range(a, b, c):
        liste.append(ele)
    return liste

print(aufg3(0,3,2))     #[0,2]
print(aufg3(0,10,3))    #[0,3,6,9]  
print(aufg3(1,11,5))    #[1,6]

#Aufgabe 4: Schleife
def aufg4(liste):
    resultat = ""
    for ele in liste:
        resultat = resultat +str(ele) + " "
    return resultat
liste1 = [1,5,17]
print(aufg4(liste1))    #1 5 17
liste2 = ['a','b']      
print(aufg4(liste2))    #a b
liste3 = liste1 + liste2
print(aufg4(liste3))    #1 5 17 a b

#Aufgabe 5 Exception
def aufg5(liste):
    resultat = ""
    try:
        for ele in liste:
            resultat = resultat +str(ele) + " "
    except:
        print("invalid input!")
    else:
        return resultat
    
print(aufg5(123))  #invalid input!

class Student():
    def __init__(self, vorname, nachname, heimatort):
        self.__vorName = vorname
        self.__nachName = nachname
        self.__heimatort = heimatort
        
    def get_vorName(self):
        return self.__vorName
    def get_nachName(self):
        return self.__nachName
    def get_heimatort(self):
        return self.__heimatort
    def __str__(self):
        return self.__vorName + " " + self.__nachName + ", " + self.__heimatort
    
class Kurs():
    def __init__(self, name):
        self.__name = name
        self.__studentenListe = list()
    def get_name(self):
        return self.__name
    def get_studentenListe(self):
        return self.__studentenListe
    def add_student(self, student):
        self.__studentenListe.append(student)
    def __str__(self):
        return self.__name + " " + str(len(self.__studentenListe))
    def save(self):
        with open ("Kurs.txt", 'w') as file:
            file.write(str(self) + "\n")
            for s in self.__studentenListe:
                file.write(str(s) + "\n")
                
kurs = Kurs("Python")
peter = Student("Peter", "Muster", "Bern")
kurs.add_student(peter)
anna = Student("Anna", "Muster", "Bern")
kurs.add_student(anna)
julia = Student("Julia", "Muster", "Bern")
kurs.add_student(julia)
kurs.save()