Write a program that asks the user to enter the size of a triangle (an integer from 1 to 10) Display the triangle by writing lines of asterisks The first line will have one asterisk, the next two, and so on, with each line having one more asterisk than the last line up to the number entered by the user. On the following line, write one fewer asterisk and continue decreasing the number of asterisks by 1 for each successive line until only one asterisk is displayed. (Hint: Use nested for loops; the outside loop controls the number of lines to write, and the inside loop controls the number of asterisks to display on a line.) For example, if the user enters 3, the output would be:

Database System Concepts
7th Edition
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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Chapter1: Introduction
Section: Chapter Questions
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• Write a program that asks the user to enter the size of a triangle (an integer from 1 to 10)
• Display the triangle by writing lines of asterisks
• The first line will have one asterisk, the next two, and so on, with each line having one more
asterisk than the last line up to the number entered by the user.
• On the following line, write one fewer asterisk and continue decreasing the number of
asterisks by 1 for each successive line until only one asterisk is displayed.
(Hint: Use nested for loops; the outside loop controls the number of lines to write, and the
inside loop controls the number of asterisks to display on a line.)
• For example, if the user enters 3, the output would be:
Input Data:
• An integer between 1 to 10
Set up an input validation loop to ensure the entered data is within range
• As long as the entered data is not within range, the user is to be prompted repeatedly until the
entered data is within range; at that point, then the valid input data is to be used to set up the
pattern
• Sample interaction:
Enter an integer between 1 to 10 (message from the program)
-9 (entered by the user)
-9 is not between 1 to 10; enter an integer between 1 to 50 (message from the program)
11 (entered by the user)
11 is not between 1 to 10; enter an integer between 1 to 10 (message from the program)
(additional incorrect input data and program's response)
5 (entered by the user as valid input data)
Transcribed Image Text:• Write a program that asks the user to enter the size of a triangle (an integer from 1 to 10) • Display the triangle by writing lines of asterisks • The first line will have one asterisk, the next two, and so on, with each line having one more asterisk than the last line up to the number entered by the user. • On the following line, write one fewer asterisk and continue decreasing the number of asterisks by 1 for each successive line until only one asterisk is displayed. (Hint: Use nested for loops; the outside loop controls the number of lines to write, and the inside loop controls the number of asterisks to display on a line.) • For example, if the user enters 3, the output would be: Input Data: • An integer between 1 to 10 Set up an input validation loop to ensure the entered data is within range • As long as the entered data is not within range, the user is to be prompted repeatedly until the entered data is within range; at that point, then the valid input data is to be used to set up the pattern • Sample interaction: Enter an integer between 1 to 10 (message from the program) -9 (entered by the user) -9 is not between 1 to 10; enter an integer between 1 to 50 (message from the program) 11 (entered by the user) 11 is not between 1 to 10; enter an integer between 1 to 10 (message from the program) (additional incorrect input data and program's response) 5 (entered by the user as valid input data)
Processing:
• Use nested loops to set up the pattern
•
Use a set of nested loops to develop the top part of the pattern
Use the second set of nested loops to develop the bottom part of the pattern
Sample Output:
• With 5 as the input data, here's the pattern:
**
**
Include:
o Documentation
o Program code: Solution complete and working correctly
o The exact output is included in the Java file as comments
Transcribed Image Text:Processing: • Use nested loops to set up the pattern • Use a set of nested loops to develop the top part of the pattern Use the second set of nested loops to develop the bottom part of the pattern Sample Output: • With 5 as the input data, here's the pattern: ** ** Include: o Documentation o Program code: Solution complete and working correctly o The exact output is included in the Java file as comments
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