tema

#Ex. 7.1
class Rectangle (object):
    def __init__(self,w=1,h=2):
        self.width=w
        self.height=h

    def getArea(self):
        return self.width*self.height
    def getPerimeter(self):
        return 2*(self.width+self.height)

w=4
print('The width of the rectangle is '+str(w))
h=40
print('The width of the rectangle is '+str(h))
r = Rectangle(w,h)
print('The area of the rectangle is ',r.getArea())
print('The perimeter of the rectangle is ' , r.getPerimeter())
w=3.5
print('The width of the rectangle is '+str(w))
h=35.7
print('The width of the rectangle is '+str(h))
r=Rectangle(w,h)
print('The area of the rectangle is ',(r.getArea()))
print('The perimeter of the rectangle is ', (r.getPerimeter()))

#Ex. 7.2
class Stock(object):
    def __init__(self, symbol, name, previousClosingPrice, currentPrice):
        self.symbol = symbol
        self.name = name
        self.previousClosingPrice = previousClosingPrice
        self.currentPrice = currentPrice

    def getSymbol(self):
        return self.symbol
    def getName(self):
        return self.name
    def previousClosingPrice(self):
        return self.previousClosingPrice
    def currentPrice(self):
        return self.__currentPrice
    def setSymbol(self, symbol):
        self.symbol = symbol
    def setName(self, name):
        self.name = name
    def setpreviousClosingPrice(self, previousClosingPrice):
        self.previousClosingPrice = previousClosingPrice
    def setcurrentPrice(self, currentPrice):
        self.currentPrice = currentPrice
    def getChangePercent(self):
        return (self.currentPrice - self.previousClosingPrice) * 100.0 / (self.previousClosingPrice)

s = Stock
s = Stock('INTC', 'Intel Corporation', 20.5, 20.35)
print('%.2f%%' % s.getChangePercent())

#Ex. 7.3
class Account(object):
    def __init__(self, id = 0, balance = 100.0, annualInterestRate = 0.0):
        self.__id = id
        self.__balance = balance
        self.__annualInterestRate = annualInterestRate

    def getId(self):
        return self.__id
    def getBalance(self):
        return self.__balance
    def getAnnualInterestRate(self):
        return self.__annualInterestRate
    def setId(self, id):
        self.__id = int(id)
    def setBalance(self, balance):
        self.__balance = float(balance)
    def setAnnualInterestRate(self, annualInterestRate):
        self.__annualInterestRate = float(annualInterestRate)
    def getMonthlyInterestRate(self):
        return self.__annualInterestRate / 12
    def getMonthlyInterest(self):
        return self.__balance * self.getMonthlyInterestRate()
    def withdraw(self,withdraw):
        amount = 30
        self.__balance=self.__balance-withdraw
    def deposit(self,dep):
        amount = 50
        self.__balance=self.__balance-dep
    def main(self):
        Account = acc
acc = Account(1122,20000,4.5)
acc.withdraw(2500)
acc.deposit(3000)
print('Account Id: '+str(acc.getId()))
print('Balance: '+str(acc.getBalance()))
print('Monthly Interest rate: '+str(acc.getMonthlyInterestRate()))
print('Monthly Interest amount: '+str(acc.getMonthlyInterest()))