Understanding While and For Loops in Python

This video tutorial covers the basics of while loops in Python, including how they differ from for loops, and how to implement them with examples. It explains the use of break, else, and continue statements within while loops, providing practical coding examples to illustrate each concept. The tutorial aims to help viewers understand the control flow in loops and how to manipulate it using these statements.

What is the primary difference between a while loop and a for loop in Python?

• A while loop iterates over a sequence regardless of a condition.

• A for loop iterates as long as a condition is true.

• A while loop iterates as long as a condition is true.

• A for loop can only iterate over numbers.

What will be the output of the following code? number = 0 while number < 3: print(number) number += 1

• 1 2 3 4

• 0 1 2 3

• 1 2 3

• 0 1 2

In a while loop, what happens when the condition becomes false?

• The loop continues to run.

• The loop stops and exits.

• The loop skips the current iteration.

• The loop restarts.

What does the break statement do in a while loop?

• It stops the loop and exits immediately.

• It continues the loop without checking the condition.

• It skips the current iteration.

• It restarts the loop.

What will be the output of the following code? number = 0 while number < 5: if number == 3: break print(number) number += 1

• 0 1 2 3 4

• 0 1 2 3

• 0 1 2

• 0 1 2 4

When does the else statement in a while loop execute?

• When the loop is restarted.

• When the loop is skipped.

• When the loop condition becomes false.

• When the loop condition is true.

What will be the output of the following code? number = 0 while number < 5: if number == 3: break print(number) number += 1 else: print('Done')

• 0 1 2 3

• 0 1 2 3 Done

• 0 1 2 Done

• 0 1 2

What does the continue statement do in a while loop?

• It stops the loop and exits immediately.

• It skips the current iteration and continues with the next.

• It restarts the loop.

• It continues the loop without checking the condition.

What will be the output of the following code? number = 0 while number < 5: number += 1 if number == 3: continue print(number)

• 1 2 3 4 5

• 1 2 4 5

• 0 1 2 4 5

• 0 1 2 3 4

What happens if the continue statement is placed before incrementing the counter in a while loop?

• The loop will stop immediately.

• The loop will skip all iterations.

• The loop will run infinitely.

• The loop will print the same number repeatedly.