# Chapter 1

# Basic syntax examples
## arithmetic operators
## int
x = 7
y = 3
z = x + y # 10
print(z)

quantity = 4
price = 12.25
sub_total = quantity * price
print(sub_total)
tax = 7  #   7/100
total = sub_total + ( (tax / 100) * sub_total ) 
print(total)   #   49.0 + ( ( .07/100 ) + 49.0 )

# string operators
# concat or join
fname = "Philip"
lname = "Matusiak"
fullname = fname + " " + lname
print(fullname)

# escapes for string
course = "Philip's Python Class"
print(course)

# index of strings
lastName = "Matusiak" # length of 8 chars range 0-7
letter = lastName[0] # get the first position of the list
print(letter)
print(lastName[0])

# slicing strings
print(fullname)
print(len(fullname))   # print the length of the var fullname  15  range 0-14
first3 = fullname[0:3]  # [0] [1] [2]
print(first3)
last1 = fullname[-1]  # [15]
print(last1)

lengthOfVar1 = len(fname)
print(lengthOfVar1)

group1Slice = fullname[0:lengthOfVar1]
print(group1Slice)

# input() function always as string 
fname = input("Enter your first name: ")
print("Your entry was: " + fname)
print( type(fname) ) # output the type of object
age = 21
print( type(age) )

VIP_status = True
print( type(VIP_status) )

# loops
## while loop
valueX = input("Enter a control: ")
x = int(valueX) # control var int
while x < 20: # loop while  condition x < 20
    print(x)  # expression sub operation of while
    x += 1 #increment by 

# for loop
listOfNames = ["Philip", "Bob", "Joe", "Mary"] # len() 4 range 0-3

for fname in listOfNames:
    print(fname)