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. 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. a. 2. Writes a triangle to the display using for loops. The triangle will be upside down. To write this triangle to the display: amountOfStars = number entered in (1). a. b. Output amountOfStars followed by a new line. C. 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: amountOfStars = 1. a. b. Output amountOfStars followed by a new line. C. Increment amountOfStars by one. d. Continue from (b) until amountOfStars is greater than the number entered in (1).

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. 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. a. 2. Writes a triangle to the display using for loops. The triangle will be upside down. To write this triangle to the display: amountOfStars = number entered in (1). a. b. Output amountOfStars followed by a new line. C. 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: amountOfStars = 1. a. b. Output amountOfStars followed by a new line. C. Increment amountOfStars by one. d. Continue from (b) until amountOfStars is greater than the number entered in (1).

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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Concept explainers

Types of Loop

Loops are the elements of programming in which a part of code is repeated a particular number of times. Loop executes the series of statements many times till the conditional statement becomes false.

Loops

Any task which is repeated more than one time is called a loop. Basically, loops can be divided into three types as while, do-while and for loop. There are so many programming languages like C, C++, JAVA, PYTHON, and many more where looping statements can be used for repetitive execution.

While Loop

Loop is a feature in the programming language. It helps us to execute a set of instructions regularly. The block of code executes until some conditions provided within that Loop are true.

Question

Enter a count between 2 and 20
**5
***
**
**
***
****
*****

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:
amountOfStars = number entered in (1).
a.
b. Output amountOfStars followed by a new line.
C. 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.
C. Increment amountOfStars by one.
d. Continue from (b) until amountOfStars is greater than the number entered in (1).

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