Varibales
A program that prints out all iD tech instructors and director name's?
assign each name to a varibale
director = "eclipse"
instructor_1 = "fajita"
instructor_2 = "papaya"
instructor_3 = "jinx"
instructor_4 = "schweppes"
instructor_5 = "nautica"
instructor_6 = "sawdog"
print(director)
print(instructor_1)
print( instructor_2)
print(instructor_3)
print(instructor_4)
print(instructor_5)
print(instructor_6)
In Python, what is the purpose of a conditional statement, and how is it represented using the if keyword?
A conditional statement in Python allows the program to make decisions based on certain conditions. It helps control the flow of the program by executing specific blocks of code when certain conditions are met.
The if keyword is used to begin a conditional statement. After if, you specify the condition you want to check, which must be an expression that evaluates to either True or False. If the condition is True, the indented block of code under the if statement is executed; otherwise, it is skipped.
In Python, what is the purpose of a loop, and how does the while loop differ from the for loop?
A loop in Python allows you to execute a block of code repeatedly. It helps avoid writing repetitive code and allows you to perform tasks efficiently.
The while loop and the for loop are two types of loops in Python:
While Loop:
The while loop repeatedly executes a block of code as long as a certain condition remains True.
The loop continues until the condition becomes False.
It is suitable when you don't know the exact number of iterations needed in advance.
The for loop iterates over a sequence (e.g., a list, tuple, or string) and executes the code block for each item in the sequence.
It is used when you know the number of iterations required in advance.
In Python, what is the purpose of using escape characters in strings? Provide an example of a situation where escape characters are useful.
Escape characters in Python are used to include special characters or sequences within strings that would otherwise be challenging to represent directly. They are denoted by a backslash (\) followed by a specific character or code.
# Printing a string with a newline using the escape character \n
print("Hello\nWorld")
# Output:
# Hello
# World
Write a Python program that takes a user's age as input and uses a conditional statement to check if they are eligible to vote. If the user's age is 18 or older, the program should display the message "You are eligible to vote." Otherwise, it should display "You are not eligible to vote yet."
def check_voting_eligibility(age):
if age >= 18:
print("You are eligible to vote.")
else:
print("You are not eligible to vote yet.")
user_age = int(input("Enter your age: "))
check_voting_eligibility(user_age)
In this program, the check_voting_eligibility() function takes the user's age as input and uses a conditional statement to determine if they are eligible to vote. If the age is 18 or older, the function prints "You are eligible to vote." Otherwise, it prints "You are not eligible to vote yet."
Write a Python program using a loop to calculate the sum of all even numbers from 1 to 20 (inclusive).
# Using a loop to calculate the sum of even numbers from 1 to 20
total_sum = 0
for num in range(1, 21):
if num % 2 == 0:
total_sum += num
print("The sum of even numbers from 1 to 20 is:", total_sum)
In this program, we use a for loop to iterate through the numbers from 1 to 20. The if statement is used to check if the number is even (i.e., divisible by 2). If it's even, the number is added to the total_sum. Finally, the program prints the total sum of even numbers from 1 to 20.
In Python, how are boolean variables represented, and what are their two possible values? Provide an example of a situation where boolean variables are used within conditional statements.
In Python, boolean variables are represented by the built-in data type bool. A boolean variable can have one of two possible values: True or False.
# Declaring and using boolean variables
is_raining = True
is_sunny = False
# Example of using boolean variables in a conditional statement
if is_raining:
print("Take an umbrella.")
elif is_sunny:
print("Wear sunscreen and enjoy the sunny day!")
else:
print("Check the weather forecast to plan your day.")
Write a Python program that takes a year as user input and determines if it's a leap year or not. A leap year is a year that is divisible by 4. If the year is a leap year, the program should print "It's a leap year!" Otherwise, it should print "It's not a leap year."
def is_leap_year(year):
if year % 4 == 0:
print("It's a leap year!")
else:
print("It's not a leap year.")
user_year = int(input("Enter a year: "))
is_leap_year(user_year)
In this simplified program, the is_leap_year() function takes the user's input year and uses a conditional statement to check if it's a leap year based on the simplified condition that the year is divisible by 4. If the year satisfies this condition, the function prints "It's a leap year!" Otherwise, it prints "It's not a leap year."
Write a Python program that takes a positive integer as input and determines if it is a prime number. A prime number is a positive integer greater than 1 that has no divisors other than 1 and itself.
def is_prime(number):
if number <= 1:
return False
for i in range(2, int(number ** 0.5) + 1):
if number % i == 0:
return False
return True
user_number = int(input("Enter a positive integer: "))
if is_prime(user_number):
print(f"{user_number} is a prime number.")
else:
print(f"{user_number} is not a prime number.")
In Python, what is the purpose of using escape characters in strings? Provide an example of a situation where escape characters are useful.
Escape characters in Python are used to include special characters or sequences within strings that would otherwise be challenging to represent directly. They are denoted by a backslash (\) followed by a specific character or code.
# Printing a string with a newline using the escape character \n
print("Hello\nWorld")
# Output:
# Hello
# World
Write a Python program that takes a user's age as input and uses a conditional statement to check if they are eligible for various activities. The program should determine whether the user can do the following:
The program should display the list of activities the user is eligible for, based on their age.
#example output
Enter your age: 22
You are eligible to vote.
You are eligible to purchase alcohol.
def check_eligibilities(age):
if age >= 18:
print("You are eligible to vote.")
if age >= 16:
print("You are eligible to drive.")
if age >= 21:
print("You are eligible to purchase alcohol.")
if age >= 25:
print("You are eligible to rent a car.")
user_age = int(input("Enter your age: "))
check_eligibilities(user_age)
In this program, the check_eligibilities() function takes the user's age as input and uses multiple conditional statements (without elif) to check if the user is eligible for various activities based on their age. If the user's age meets the eligibility criteria for an activity, the function prints the corresponding message.
Write a Python program that uses a loop to find and print all the prime numbers between 1 and 50.
def is_prime(number):
if number <= 1:
return False
for i in range(2, int(number ** 0.5) + 1):
if number % i == 0:
return False
return True
print("Prime numbers between 1 and 50:")
for num in range(1, 51):
if is_prime(num):
print(num)
In this program, the is_prime() function is used to check if a number is prime, as shown in the previous example. The loop then iterates through numbers from 1 to 50, and for each number, it checks if it is prime using the is_prime() function. If the number is prime, it is printed.
Write a Python program that takes user input for the number of dice rolls, generates random numbers for each roll, and prints the results. Additionally, the program should determine if any of the rolls result in doubles (i.e., both dice showing the same number). If doubles occur, the program should display a congratulatory message.
How many times would you like to roll the dice? 5 Roll 1: 3 and 6 Roll 2: 2 and 2 (Congratulations, you got doubles!) Roll 3: 5 and 1 Roll 4: 4 and 3 Roll 5: 2 and 4
import random
def roll_dice(num_rolls):
doubles = False
for roll_num in range(1, num_rolls + 1):
dice1 = random.randint(1, 6)
dice2 = random.randint(1, 6)
print(f"Roll {roll_num}: {dice1} and {dice2}")
if dice1 == dice2:
doubles = True
if doubles:
print("Congratulations, you got doubles!")
num_rolls = int(input("How many times would you like to roll the dice? "))
roll_dice(num_rolls)
In this program, the roll_dice() function takes a user-input value for the number of dice rolls and then generates two random numbers (representing two dice rolls) for each iteration. If any of the rolls result in doubles (both dice showing the same number), a congratulatory message is displayed.
Write a Python program that takes a user's age and height (in centimeters) as input and uses conditional statements to determine if they are eligible to ride a roller coaster. The roller coaster has two requirements for riders:
The program should check both conditions and display an appropriate message indicating whether the user is eligible to ride the roller coaster or not.
Enter your age: 12
Enter your height in centimeters: 130
Congratulations! You are eligible to ride the roller coaster.
OR
Enter your age: 8
Enter your height in centimeters: 110
Sorry, you do not meet the requirements to ride the roller coaster.
def check_roller_coaster_eligibility(age, height):
if age >= 10 and height >= 120:
print("Congratulations! You are eligible to ride the roller coaster.")
else:
print("Sorry, you do not meet the requirements to ride the roller coaster.")
user_age = int(input("Enter your age: "))
user_height = int(input("Enter your height in centimeters: "))
check_roller_coaster_eligibility(user_age, user_height)
In this program, the check_roller_coaster_eligibility() function takes the user's age and height as input and uses a conditional statement to check if they meet the requirements to ride the roller coaster. If the user's age is at least 10 and their height is at least 120 centimeters, the function prints a congratulatory message. Otherwise, it prints a message indicating that the user does not meet the requirements.
Write a Python program that takes a positive integer as input and calculates the sum of its digits.
#Example
Enter a number: 12345
The sum of digits is: 15
def sum_of_digits(number):
total_sum = 0
for digit in str(number):
total_sum += int(digit)
return total_sum
user_number = int(input("Enter a number: "))
if user_number < 0:
print("Please enter a positive integer.")
else:
result = sum_of_digits(user_number)
print("The sum of digits is:", result)
In this program, the sum_of_digits() function takes a positive integer number as input. It converts the number to a string and then iterates through each character (digit) in the string, converting it back to an integer and adding it to the total_sum. Finally, the program prints the sum of the digits.