# Exercise: input and output
# Date: Sep 7, 2016

# 1. Write a statement that creates a variable named my_var
# with a value "let's practice"



# 2. What type is my_var?
# Write a staetment to display the type of the variable my_var



# 3. Reassign any integer value to my_var



# 4. What type is my_var?
# Write a staetment to display the type of the variable my_var



# 5. Consider variable naming convention
# Which one is valid? Whice one is good practice in Python?
number_of_slices_of_bacon = 100    # a.
badVariableName = "Java"           # b.


# 6. Write a statement that display an addition of two integers (5 and 9)



# 7. Write a statement that display a concatenation of three strings "input", "and", "output"
# separated by a space



# 8. Consider the following statements. What are differences?
print(9.5 / 2.3)                     # a.
print(format(9.5 / 2.3, ".7f"))      # b.
print(format(9.5 / 2.3, ".2f"))      # c.
print(format(9.5 / 2.3, ".2%"))      # d.


# 9.Write a statement that displays a raise of an integer to an integer power
# (let's say 2 to the power of 3)



# 10. Write a statement that displays the remainder of division of 25 / 6



# 11. Consider the following statements. What are differences?
print(6 // 4)
print(6 / 4)



# 12. Write a statement to get an input from a keyboard (i.e., user's input)
# and store this input in a variable called "your_name"
# let's ask "What is your name ?"
# and display "Hello, " followed by value stored in your_name



# 13. Consider the following statement
number = input("Give me a number between 0 and 100: ")
print(type(number))    # what do we get from this statement?

number = int(number) + 4
print(type(number))    # what do we get from this statement?


# 14. Consider the following statements. What happens?
number number / 0
number = number / 0


# 15. Write statements to display the value of the following expressions
# a. 9 // 2
# b. 9 % 2