Podcast
Questions and Answers
What is the index value in a for loop?
What is the index value in a for loop?
i
What does range(4) contain?
What does range(4) contain?
4 values
What does the keyword in do in a for loop?
What does the keyword in do in a for loop?
It tells the for loop to use the index value (i) to count the values in the range.
How many times will "Hello!" be printed with the following code?
for i in range(4):
print("Hello!")
How many times will "Hello!" be printed with the following code?
for i in range(4):
print("Hello!")
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What will the following code print?
for i in range(4):
print(i)
What will the following code print?
for i in range(4):
print(i)
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The range function always starts at 0.
The range function always starts at 0.
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If we change the range(4) function in the following code to range(1, 4), what will the code print?
for i in range(1, 4):
print("Hello!")
If we change the range(4) function in the following code to range(1, 4), what will the code print?
for i in range(1, 4):
print("Hello!")
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What will the following code print?
for i in range(1, 6):
print(i)
What will the following code print?
for i in range(1, 6):
print(i)
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What will the following code print?
my_number = 4
for i in range(my_number):
print(i)
What will the following code print?
my_number = 4
for i in range(my_number):
print(i)
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What will the following code print given the user enters "5"?
my_number = int(input("Number: "))
for i in range(my_number):
print(i)
What will the following code print given the user enters "5"?
my_number = int(input("Number: "))
for i in range(my_number):
print(i)
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Study Notes
For Loops
- For loops are a fundamental programming construct.
- They allow you to repeat a block of code a specific number of times.
- A basic
forloop iterates over a sequence of values. -
range(4)creates a sequence of numbers from 0 to 3 (up to, but not including 4). -
for i in range(4):means the code inside is executed four times withiholding the value from the sequence 0 to 3 - The code block following
formust be indented. -
range(start, stop, step)can create sequences with different starting numbers, stops, and steps. - Providing
range(1, 6)creates the sequence of numbers 1 to 5 inclusive -
range(1, 6, 2)creates sequence of numbers 1,3,5 -
rangevalues can be assigned to variables in order to use them in the loop
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Description
This quiz covers the fundamental aspects of for loops in Python programming. It includes how to create and use for loops, the significance of the range function, and variable assignment within loops. Test your understanding of these key programming concepts.
