Please answer in c++the sample output is also attached please reach out for any questions **Design and Implement Program**Develop a program that implements the following three methods:- **Method `isValid(...)`:** Returns `true` if the sum of the width and height is greater than 30. ```java boolean isValid(double width, double height) {} ```- **Method `Area(...)`:** Returns the area of the rectangle if it is a valid rectangle. ```java double Area(double width, double height) {} ```- **Method `Perimeter(...)`:** Returns the perimeter of the rectangle if it is a valid rectangle. ```java double Perimeter(double width, double height) {} ```**Important Note:** Always remember that in Java and C#, the methods must be `public` and `static`.**Instructions for the Main Method:**The main method should prompt the user to enter the width and height of a rectangle (as double values) and use the methods to print out a message followed by the area and perimeter if the rectangle is valid. Otherwise, it only prints the message: "This is an invalid rectangle."**Note:** The method `isValid(...)` is used to validate the input before attempting to compute the area and perimeter.**Additional Design Requirement:**Design the main method in the test program such that it allows the user to re-run the program with different inputs (using a sentinel loop structure). This is a transcription of a computer program output along with instructions for students. The program seems to validate rectangles and calculate their area and perimeter:---This is an invalid rectangleDo you want to enter another width and height (Y/N)? : **Y**Enter width: **20.0** Enter height: **15.0** This is a valid rectangle The area is: **300.0** The perimeter is: **70.0**Do you want to enter another width and height (Y/N)? : **N**Program Ends---**Instructions:**- Programs must be working correctly.- **Programs must be saved in files with the correct file name.**- If working in Java or C#, class names must be correct.

The program is written in C++. Please check step 2 for Program.

Design and implement program that implements the following 3 methods: - Method isValid(...) returns true if the sum of the width and height is greater than 30 boolean isValid(double width, double height){) - Method Area (...) returns the area of the rectangle if it is a valid rectangle .3B double Area (double width, double height){} Method Perimeter(...) returns the perimeter of the rectangle if it is a valid rectangle double Perimeter(double width, double height){} Always remember that in Java and C#, the methods must be public and static The main method should prompt the user to enter the width and height of a rectangle (double values) and uses the methods to print out a message followed by the area and perimeter if the rectangle is valid. Otherwise, it prints out only the message " This is an invalid rectangle." Note: that method isValid(...) is used to validate the input before attempting to compute the area and perimeter.

Design and implement program that implements the following 3 methods: - Method isValid(...) returns true if the sum of the width and height is greater than 30 boolean isValid(double width, double height){) - Method Area (...) returns the area of the rectangle if it is a valid rectangle .3B double Area (double width, double height){} Method Perimeter(...) returns the perimeter of the rectangle if it is a valid rectangle double Perimeter(double width, double height){} Always remember that in Java and C#, the methods must be public and static The main method should prompt the user to enter the width and height of a rectangle (double values) and uses the methods to print out a message followed by the area and perimeter if the rectangle is valid. Otherwise, it prints out only the message " This is an invalid rectangle." Note: that method isValid(...) is used to validate the input before attempting to compute the area and perimeter.

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

Please answer in c++

the sample output is also attached please reach out for any questions

**Design and Implement Program**

Develop a program that implements the following three methods:

- **Method `isValid(...)`:**
Returns `true` if the sum of the width and height is greater than 30.
```java
boolean isValid(double width, double height) {}
```

- **Method `Area(...)`:**
Returns the area of the rectangle if it is a valid rectangle.
```java
double Area(double width, double height) {}
```

- **Method `Perimeter(...)`:**
Returns the perimeter of the rectangle if it is a valid rectangle.
```java
double Perimeter(double width, double height) {}
```

**Important Note:**
Always remember that in Java and C#, the methods must be `public` and `static`.

**Instructions for the Main Method:**

The main method should prompt the user to enter the width and height of a rectangle (as double values) and use the methods to print out a message followed by the area and perimeter if the rectangle is valid. Otherwise, it only prints the message:
"This is an invalid rectangle."

**Note:**
The method `isValid(...)` is used to validate the input before attempting to compute the area and perimeter.

**Additional Design Requirement:**

Design the main method in the test program such that it allows the user to re-run the program with different inputs (using a sentinel loop structure).

This is a transcription of a computer program output along with instructions for students. The program seems to validate rectangles and calculate their area and perimeter:

---

This is an invalid rectangle

Do you want to enter another width and height (Y/N)? : **Y**

Enter width: **20.0**
Enter height: **15.0**
This is a valid rectangle
The area is: **300.0**
The perimeter is: **70.0**

Do you want to enter another width and height (Y/N)? : **N**

Program Ends

---

**Instructions:**

- Programs must be working correctly.
- **Programs must be saved in files with the correct file name.**
- If working in Java or C#, class names must be correct.

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