Halil-Wiki : First Day

mylist = []
mylist.append(1)
mylist.append(2)
mylist.append(3)
print(mylist[0]) # prints 1
print(mylist[1]) # prints 2
print(mylist[2]) # prints 3

# prints out 1,2,3
for x in mylist:
    print(x)

numbers=[]
numbers.append(1)
numbers.append(2)
numbers.append(3)

strings=[]
strings.append("hello")
strings.append("world")
names=["John","Eric","Jessica"]

second_name=names[1]

print(numbers)
print(strings)
print("The second name on the name list is %s" %second_name)

number = 1 + 2 * 3 / 4.0
print(number)

#-----------------------------------------------
#-----------------------------------------------


remainder = 11 % 3
print(remainder)

squared = 7 ** 2
cubed = 2 ** 3

lotsofhellos = "hello " * 10
print(lotsofhellos)

even_numbers = [2,4,6,8]
odd_numbers = [1,3,5,7]
all_numbers = odd_numbers + even_numbers
print(all_numbers)

x = object()
y = object()

# This prints out "Hello, John!"
name = "John"
print("Hello, %s!" % name)

# This prints out "John is 23 years old."
name = "John"
age = 23
print("%s is %d years old." % (name, age))


#%s - String (or any object with a string representation, like numbers)

#d - Integers

#%f - Floating point numbers

#%.<number of digits>f - Floating point numbers with a fixed amount of digits to the right of the dot.

#%x/%X - Integers in hex representation (lowercase/uppercase)

xcc=len(name)
print("%d" %xcc)
print(xcc)

astring = "Hello world!"
print(astring.index("o")) #4
print(astring.count("l")) #3
print(astring[3:7])       #lo w 3 to 7 (7th is not included)
print(astring[3:7:2])     #l 3to7 skipping one character
print(astring[::-1])
print(astring.upper())
print(astring.lower())
print(astring.startswith("Hello"))       #True
print(astring.endswith("asdfasdfasdf"))  #False
afewwords = astring.split(" ")
print(afewwords)
print(afewwords[1])

x = 2
print(x == 2) # pPints out True
print(x == 3) # Prints out False
print(x < 3)  # Prints out True
 # The "not equals" operator is marked as "!=".

name = "John"
age = 23
if name == "John" and age == 23:
    print("Your name is John, and you are also 23 years old.")

if name == "John" or name == "Rick":
    print("Your name is either John or Rick.")

name = "John"
if name in ["John", "Rick"]:
    print("Your name is either John or Rick.")

#if <statement is="" true="">:
 #<do something="">
 #....
 #....
 #elif <another statement="" is="" true="">: # else if
 #<do something="" else="">
 #....
 #....
#else:
 #<do another="" thing="">
 #....
 #....
#</do></do></another></do></statement>

x = [1,2,3]
y = [1,2,3]
print(x == y) # Prints out True
print(x is y) # Prints out False #!!!!!!!

print(not False)              # Prints out True
print((not False) == (False)) # Prints out False


first_array=[0]


if first_array:  #doğru kabul ediyor
 print("22")
else:
    print("12")

first_array=0

if first_array: #yanlış kabul ediyor
 print("22")
else:
    print("12")

primes = [2, 3, 5, 7]
for prime in primes:
    print(prime)

temurtas = [5, 8, 3, 6]
for halil in temurtas:
    print(halil)
    print(temurtas)

for x in range(12,23):
    print(x)

count = 0
while count < 5:
    print(count)
    count += 1 # This is the same as count = count + 1


# Prints out 0,1,2,3,4
count = 0
while True:
    print(count)
    count += 1
 if count >= 5:
        break

# Prints out only odd numbers - 1,3,5,7,9
for x in range(10):
    # Check if x is even
 if x % 2 == 0:
        continue
 print(x)


# Prints out 0,1,2,3,4 and then it prints "count value reached 5"

count=0
while(count<5):
    print(count)
    count +=1
else:
    print("count value reached %d" %(count))

# Prints out 1,2,3,4
for i in range(1, 10):
    if(i%5==0):
        break
 print(i)
else:
    print("this is not printed because for loop is terminated "
 "because of break but not due to fail in condition")

# If break statement is executed inside for loop then the "else" part is skipped.
# Note that "else" part is executed even if there is a continue statement.

#-----------------------------------------------

#-------FUNCTIONS-------------------------------
#-----------------------------------------------

def my_function():
    print("Hello From My Function!")


def my_function_with_args(username, greeting):
    print("Hello, %s , From My Function!, I wish you %s"%(username, greeting))

def sum_two_numbers(a, b):
    return a + b

# print(a simple greeting)
my_function()

#prints - "Hello, John Doe, From My Function!, I wish you a great year!"
my_function_with_args("John Doe", "a great year!")

# after this line x will hold the value 3!
x = sum_two_numbers(1,2)
print("x=%s" %x)

#-----------------------------------------------
#---------EXERCISE------------------------------

#-----------------------------------------------

def list_benefits():
    return "More organized code", "More readable code", "Easier code reuse", "Allowing programmers to share and connect code together"

# Modify this function to concatenate to each benefit - " is a benefit of functions!"
def build_sentence(benefit):
    return "%s is a benefit of functions!" % benefit


def name_the_benefits_of_functions():
    list_of_benefits = list_benefits()
    for benefit in list_of_benefits:
        print(build_sentence(benefit))

name_the_benefits_of_functions()

#-----------------------------------------------

#-------CLASSES and OBJECTS---------------------
#-----------------------------------------------


# Objects are an encapsulation of variables and functions into a single entity.
# Objects get their variables and functions from classes.
# Classes are essentially a template to create your objects.

class MyClass:
    variable = "blah"

 def function(self):
        print("This is a message inside the class.")

myobjectx = MyClass()
myobjecty = MyClass()

myobjecty.variable = "yackity"

print(myobjectx.variable)
print(myobjecty.variable)

myobjectx = MyClass()

myobjectx.function()



#-----------------------------------------------
#---------EXERCISE------------------------------

#-----------------------------------------------



# define the Vehicle class
class Vehicle:
    name = ""
 kind = "car"
 color = ""
 value = 100.00
 def description(self):
        desc_str = "%s is a %s %s worth $%.2f." % (self.name, self.color, self.kind, self.value)
        return desc_str

# your code goes here
car1 = Vehicle()
car1.name = "Fer"
car1.color = "red"
car1.kind = "convertible"
car1.value = 60000.00

car2 = Vehicle()
car2.name = "Jump"
car2.color = "blue"
car2.kind = "van"
car2.value = 10000.00

# test code
print(car1.description())
print(car2.description())

# Output:
# Fer is a red convertible worth $60000.00.
# Jump is a blue van worth $10000.00.