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CHALLENGE ACTIVITY 5.2.2: Basic while loop with user input.   Write an expression that executes the loop body as long as the user enters a non-negative number. Note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds and report "Program end never reached." The system doesn't print the test case that caused the reported message. Sample outputs with inputs: 9 5 2 -1 Body Body Body Done.   Use Python, please.

CHALLENGE ACTIVITY 5.2.2: Basic while loop with user input.   Write an expression that executes the loop body as long as the user enters a non-negative number. Note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds and report "Program end never reached." The system doesn't print the test case that caused the reported message. Sample outputs with inputs: 9 5 2 -1 Body Body Body Done.   Use Python, please.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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CHALLENGE ACTIVITY
5.2.2: Basic while loop with user input.
 
Write an expression that executes the loop body as long as the user enters a non-negative number.

Note: If the submitted code has an infinite loop, the system will stop running the code after a few seconds and report "Program end never reached." The system doesn't print the test case that caused the reported message.

Sample outputs with inputs: 9 5 2 -1 Body Body Body Done.
 
Use Python, please.
The image depicts a testing interface for a coding exercise. 1. **Run Button:** A visible "Run" button suggests that the code or script is being executed. 2. **Testing Session:** - **Inputs and Outputs:** - First Test Case: With inputs `9 5 2 -1`, the output was: ``` Body Body Body Done. ``` This output appears correct as the test is marked with a green check. - Second Test Case: With inputs `0 -17`, the output differed from the expected result. - **Actual Output:** ``` Done. ``` - **Expected Output:** ``` Body Done. ``` The discrepancy is highlighted, indicating something was expected before "Done." 3. **Test Aborted:** The bottom of the image shows that the test was aborted. 4. **Interface Features:** - There is a reference to "Special character legend," implying that some characters might be non-standard or special. - Options to "View your last submission" and "Feedback" suggest features to review past attempts and provide input on the testing experience. This setup seems tailored for debugging and iterative testing of code snippets, helping users identify where their output diverges from expected results.
Transcribed Image Text:The image depicts a testing interface for a coding exercise. 1. **Run Button:** A visible "Run" button suggests that the code or script is being executed. 2. **Testing Session:** - **Inputs and Outputs:** - First Test Case: With inputs `9 5 2 -1`, the output was: ``` Body Body Body Done. ``` This output appears correct as the test is marked with a green check. - Second Test Case: With inputs `0 -17`, the output differed from the expected result. - **Actual Output:** ``` Done. ``` - **Expected Output:** ``` Body Done. ``` The discrepancy is highlighted, indicating something was expected before "Done." 3. **Test Aborted:** The bottom of the image shows that the test was aborted. 4. **Interface Features:** - There is a reference to "Special character legend," implying that some characters might be non-standard or special. - Options to "View your last submission" and "Feedback" suggest features to review past attempts and provide input on the testing experience. This setup seems tailored for debugging and iterative testing of code snippets, helping users identify where their output diverges from expected results.
```python user_num = int(input()) while user_num > 0: print('Body') user_num = int(input()) print('Done.') ``` ### Description This Python code utilizes a `while` loop to repeatedly prompt the user for input until they enter a non-positive integer. Below is a detailed explanation of each component: - **Line 1:** - `user_num = int(input())` prompts the user to input a number and converts it to an integer. The input is stored in the variable `user_num`. - **Line 2:** - `while user_num > 0:` starts a loop that continues as long as `user_num` is greater than zero. - **Line 3:** - `print('Body')` outputs the string 'Body' each time the loop iterates. - **Line 4:** - Again, `user_num = int(input())` prompts the user to input a new number, updating the value of `user_num`. This allows the loop to eventually end if the user enters a non-positive number. - **Line 6:** - `print('Done.')` outputs the string 'Done.' after the loop concludes, indicating the end of the program. ### Graphical Elements - The interface includes a "Run" button, which is typical for environments where code can be executed directly. This button is located at the bottom left. - To the right, there are indicators showing that "1 test passed" and "All tests passed," suggesting this code is part of a testing environment where its functionality is verified.
Transcribed Image Text:```python user_num = int(input()) while user_num > 0: print('Body') user_num = int(input()) print('Done.') ``` ### Description This Python code utilizes a `while` loop to repeatedly prompt the user for input until they enter a non-positive integer. Below is a detailed explanation of each component: - **Line 1:** - `user_num = int(input())` prompts the user to input a number and converts it to an integer. The input is stored in the variable `user_num`. - **Line 2:** - `while user_num > 0:` starts a loop that continues as long as `user_num` is greater than zero. - **Line 3:** - `print('Body')` outputs the string 'Body' each time the loop iterates. - **Line 4:** - Again, `user_num = int(input())` prompts the user to input a new number, updating the value of `user_num`. This allows the loop to eventually end if the user enters a non-positive number. - **Line 6:** - `print('Done.')` outputs the string 'Done.' after the loop concludes, indicating the end of the program. ### Graphical Elements - The interface includes a "Run" button, which is typical for environments where code can be executed directly. This button is located at the bottom left. - To the right, there are indicators showing that "1 test passed" and "All tests passed," suggesting this code is part of a testing environment where its functionality is verified.
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