Answered: my code won’t work. i’m using java to…

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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Question

my code won’t work. i’m using java to compile a code that will give the user the perimeter or area of a rectangle and my if else statements aren’t working.

Expert Solution

Step 1: Algorithm

Start:
- Initialize the program.
Display a Welcome Message:
- Print a welcoming message to the user.
Input Length:
- Prompt the user to enter the length of the rectangle.
- Read and store the length value.
Validate Length:
- Check if the length is a non-negative number.
- If the length is negative, display an error message and end the program.
- If the length is valid, continue to the next step.
Input Width:
- Prompt the user to enter the width of the rectangle.
- Read and store the width value.
Validate Width:
- Check if the width is a non-negative number.
- If the width is negative, display an error message and end the program.
- If the width is valid, continue to the next step.
Calculate Area:
- Calculate the area of the rectangle using the formula: area = length * width.
Calculate Perimeter:
- Calculate the perimeter of the rectangle using the formula: perimeter = 2 * (length + width).
Display Results:
- Print the calculated area and perimeter of the rectangle.
End:
- Terminate the program.

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