def main():
calendar = Calendar()
calendar.appendPlan(Plan('剣道', '2019/10/26 9:00', '2019/10/26 12:00'))
calendar.appendPlan(Plan('友達と遊ぶ', '2019/10/26 11:00', '2019/10/26 22:00'))
calendar.appendPlan(Plan('本を読む', '2019/10/27 13:00', '2019/10/27 19:00'))
it = calendar.iterator()
while it.hasNext():
plan = it.next()
print('----------------------')
print(plan.getName())
print(plan.getStartDate())
print(plan.getEndDate())
