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What is the use of the "break" and "continue" keywords in Python loops?

The break and continue keywords in Python are used to alter the flow of execution within loops, such as for and while loops. They provide control over how the loop operates and allow you to control when the loop should terminate or skip certain iterations.

Here's an explanation of the break and continue keywords in Python loops:

break keyword:

  • The break keyword is used to prematurely terminate a loop. When encountered within a loop, it immediately exits the loop, regardless of the loop condition.
  • The break statement is typically used when a certain condition is met, and you want to stop the loop execution at that point.
  • After encountering a break statement, the program flow continues with the next statement after the loop.

Example:

# Using 'break' to terminate a loop
numbers = [1, 2, 3, 4, 5]

for num in numbers:
    if num == 3:
        break
    print(num)

Output:

1
2

continue keyword:

  • The continue keyword is used to skip the current iteration of a loop and move to the next iteration.
  • When a continue statement is encountered within a loop, the remaining code within the loop for that iteration is skipped, and the loop proceeds with the next iteration.
  • The continue statement is typically used when you want to skip certain iterations based on a condition but continue with the loop execution.

Example:

# Using 'continue' to skip an iteration
numbers = [1, 2, 3, 4, 5]

for num in numbers:
    if num % 2 == 0:
        continue
    print(num)

Output:

1
3
5

In this example, the continue statement is used to skip the even numbers. When an even number is encountered (num % 2 == 0), the current iteration is skipped, and the loop proceeds to the next iteration.

By using the break and continue keywords, you can have more control over the flow of your loops. The break statement allows you to prematurely exit a loop, while the continue statement lets you skip certain iterations. These keywords provide flexibility and allow you to design loops that suit your specific requirements.

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