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Write a complete program that: 1. Uses a do...while loop to prompt the user to enter a count that is greater than 1 and less than or equal to 20 then reads in a count from the keyboard as an integer. a. If input error occurs or the count the user enters is less than or equal to 1 or greater than 20, output an error. After outputting an error, clear/ignore the failed input and continue do...while looping until a valid number is entered. 2. Writes a triangle to the display using for loops. The triangle will be upside down. To write this triangle to the display: а. amountOfStars = number entered in (1). b. Output amountOfStars followed by a new line. с. Decrement amountOfStars by one. d. Continue from (b) until amountOfStars is zero. 3. Writes a triangle to the display using while loops. The triangle will be rightside up. To write this triangle to the display: a. amountOfStars 1. b. Output amountOfStars followed by a new line. Increment amountOfStars by one. с. d. Continue from (b) until amountOfStars is greater than the number entered in (1). Your program must handle the possibility that the user accidentally enters a character or out of bounds number. If a character or an out of bounds number is entered, the stream should be cleared, any previous values read should be discarded, an error displayed, and the user prompted again. The program should not exit until good values have been entered. A do...while loop must be used to take in input. A for loop must be used to output the first triangle. A while loop must be used to output the second triangle. Failure to do so will result in a 0 for this lab.

Write a complete program that: 1. Uses a do...while loop to prompt the user to enter a count that is greater than 1 and less than or equal to 20 then reads in a count from the keyboard as an integer. a. If input error occurs or the count the user enters is less than or equal to 1 or greater than 20, output an error. After outputting an error, clear/ignore the failed input and continue do...while looping until a valid number is entered. 2. Writes a triangle to the display using for loops. The triangle will be upside down. To write this triangle to the display: а. amountOfStars = number entered in (1). b. Output amountOfStars followed by a new line. с. Decrement amountOfStars by one. d. Continue from (b) until amountOfStars is zero. 3. Writes a triangle to the display using while loops. The triangle will be rightside up. To write this triangle to the display: a. amountOfStars 1. b. Output amountOfStars followed by a new line. Increment amountOfStars by one. с. d. Continue from (b) until amountOfStars is greater than the number entered in (1). Your program must handle the possibility that the user accidentally enters a character or out of bounds number. If a character or an out of bounds number is entered, the stream should be cleared, any previous values read should be discarded, an error displayed, and the user prompted again. The program should not exit until good values have been entered. A do...while loop must be used to take in input. A for loop must be used to output the first triangle. A while loop must be used to output the second triangle. Failure to do so will result in a 0 for this lab.

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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Write in C++. Need help matching the output below

**Programming Task Instructions** This task involves writing a complete program with the following steps: 1. **Use a do...while loop to prompt the user for input:** - The user must enter a count greater than 1 and less than or equal to 20. - If an invalid input is detected (a count less than or equal to 1, or greater than 20), prompt an error message. Ignore the invalid input and continue prompting the user until a valid number is entered. 2. **Display an upside-down triangle using for loops:** - Set `amountOfStars` to the number entered from the user's input. - Output `amountOfStars` stars, followed by a new line for each iteration. - Decrease `amountOfStars` by one after each line. - Continue this process until `amountOfStars` is zero, forming an inverted triangle. 3. **Display a right-side-up triangle using while loops:** - Initialize `amountOfStars` as 1. - Output `amountOfStars` stars, followed by a new line for each iteration. - Increase `amountOfStars` by one after each line. - Continue this process until `amountOfStars` is equal to the number entered initially by the user. **Error Handling:** - The program should manage situations where a user inputs an invalid character or an out-of-bounds number. In these cases, clear the stream, discard previous invalid inputs, show an error, and re-prompt the user. Ensure valid values are entered before proceeding with the program logic. **Loop Requirements:** - A do...while loop is mandated for obtaining user input. - A for loop must be employed for creating the first triangle. - A while loop is necessary for forming the second triangle. - Adherence to these loop structures is critical for successful completion of the lab task. Failure to comply results in a score of zero for this lab exercise.
Transcribed Image Text:**Programming Task Instructions** This task involves writing a complete program with the following steps: 1. **Use a do...while loop to prompt the user for input:** - The user must enter a count greater than 1 and less than or equal to 20. - If an invalid input is detected (a count less than or equal to 1, or greater than 20), prompt an error message. Ignore the invalid input and continue prompting the user until a valid number is entered. 2. **Display an upside-down triangle using for loops:** - Set `amountOfStars` to the number entered from the user's input. - Output `amountOfStars` stars, followed by a new line for each iteration. - Decrease `amountOfStars` by one after each line. - Continue this process until `amountOfStars` is zero, forming an inverted triangle. 3. **Display a right-side-up triangle using while loops:** - Initialize `amountOfStars` as 1. - Output `amountOfStars` stars, followed by a new line for each iteration. - Increase `amountOfStars` by one after each line. - Continue this process until `amountOfStars` is equal to the number entered initially by the user. **Error Handling:** - The program should manage situations where a user inputs an invalid character or an out-of-bounds number. In these cases, clear the stream, discard previous invalid inputs, show an error, and re-prompt the user. Ensure valid values are entered before proceeding with the program logic. **Loop Requirements:** - A do...while loop is mandated for obtaining user input. - A for loop must be employed for creating the first triangle. - A while loop is necessary for forming the second triangle. - Adherence to these loop structures is critical for successful completion of the lab task. Failure to comply results in a score of zero for this lab exercise.
### Transcription of Image for Educational Purposes This text seems to represent a program output that prompts users to enter a count within a specific range. Here's the transcription and explanation: #### Text Output ``` Enter a count between 2 and 20 **failed Error: Invalid entry, please retry Enter a count between 2 and 20 **whoops Error: Invalid entry, please retry Enter a count between 2 and 20 **! Error: Invalid entry, please retry Enter a count between 2 and 20 **hello Error: Invalid entry, please retry Enter a count between 2 and 20 **6 ****** ***** **** *** ** * * ** *** **** ***** ****** ``` #### Explanation The text consists of several prompts and responses: 1. **Prompts and Errors:** - The program repeatedly prompts, "Enter a count between 2 and 20". - Multiple invalid entries are attempted (e.g., "failed", "whoops", "!", "hello") and generate the error message: "Error: Invalid entry, please retry". 2. **Valid Entry:** - A valid entry of `6` is entered. - This results in a pattern of asterisks being displayed. The pattern starts with six asterisks and reduces by one asterisk per line until it reaches a single asterisk. Then, it mirrors back up to six asterisks. #### Diagram Explanation - **Asterisk Pattern:** The asterisk pattern resembles an inverted pyramid transitioning into an upright pyramid: - Descends from `******` to `*` and ascends back to `******`. - Demonstrates the program responding to valid input by generating a symmetrical pattern based on the user-entered number.
Transcribed Image Text:### Transcription of Image for Educational Purposes This text seems to represent a program output that prompts users to enter a count within a specific range. Here's the transcription and explanation: #### Text Output ``` Enter a count between 2 and 20 **failed Error: Invalid entry, please retry Enter a count between 2 and 20 **whoops Error: Invalid entry, please retry Enter a count between 2 and 20 **! Error: Invalid entry, please retry Enter a count between 2 and 20 **hello Error: Invalid entry, please retry Enter a count between 2 and 20 **6 ****** ***** **** *** ** * * ** *** **** ***** ****** ``` #### Explanation The text consists of several prompts and responses: 1. **Prompts and Errors:** - The program repeatedly prompts, "Enter a count between 2 and 20". - Multiple invalid entries are attempted (e.g., "failed", "whoops", "!", "hello") and generate the error message: "Error: Invalid entry, please retry". 2. **Valid Entry:** - A valid entry of `6` is entered. - This results in a pattern of asterisks being displayed. The pattern starts with six asterisks and reduces by one asterisk per line until it reaches a single asterisk. Then, it mirrors back up to six asterisks. #### Diagram Explanation - **Asterisk Pattern:** The asterisk pattern resembles an inverted pyramid transitioning into an upright pyramid: - Descends from `******` to `*` and ascends back to `******`. - Demonstrates the program responding to valid input by generating a symmetrical pattern based on the user-entered number.
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