Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Java language, please solve the 4 parts sir, thank u alot
![**Lab Objectives:**
- To define arrays of objects.
- To pass objects to methods.
---
**Task:**
You will use the implementation of the Item class from Lab-5.
**Implement the following class named Item with the following UML diagram:**
---
### UML Diagram for Item Class
**Attributes:**
- `+ name: String`
- `- reviews: String[]`
- `- priceWithoutTax: double`
- `- salesTax: double = 0.16`
**Methods:**
- `+ Item()`
- `+ Item(name: String, priceWithoutTax: double)`
- `+ Item(item: Item)`
- `+ getReviews(): String[]`
- `+ addReview(): void`
- `+ getPriceWithoutTax(): double`
- `+ setPriceWithoutTax(priceWithoutTax: double): void`
- `+ getSalesTax(): double`
- `+ setSalesTax(salesTax: double): void`
- `+ getPriceWithTax(): double`
- `+ printReviews(): void`
- `+ searchReviews(): void`
---
**Instructions:**
- Add the `Item(Item item)` constructor which initializes the data fields `name` and `priceWithoutTax` with values of the corresponding data fields of the passed object `item`.
**In Your Main Class:**
1. Implement a method named `createListOfItems` which asks the user about the number of items to be created and returns an array that consists of the passed number of items created using the no-arg constructor.
2. Implement a method named `printItems` which takes an array of items and prints the items’ details to the console as a table as follows:
```
Item name Price without tax Price with tax
.
.
```
3. Implement a method named `searchItem` which takes an array of items and a `String` which represents the name of the item to search for. If an item with the passed name is found, it must be returned. If no item with the passed name is found, the method must return `null`.](https://content.bartleby.com/qna-images/question/c8d1310a-e155-4c4e-aa49-cfe7c4f85aec/8ac9c8b1-8795-4c71-a9dd-507e7c9b3f76/wo6t7h_processed.jpeg)
Transcribed Image Text:**Lab Objectives:**
- To define arrays of objects.
- To pass objects to methods.
---
**Task:**
You will use the implementation of the Item class from Lab-5.
**Implement the following class named Item with the following UML diagram:**
---
### UML Diagram for Item Class
**Attributes:**
- `+ name: String`
- `- reviews: String[]`
- `- priceWithoutTax: double`
- `- salesTax: double = 0.16`
**Methods:**
- `+ Item()`
- `+ Item(name: String, priceWithoutTax: double)`
- `+ Item(item: Item)`
- `+ getReviews(): String[]`
- `+ addReview(): void`
- `+ getPriceWithoutTax(): double`
- `+ setPriceWithoutTax(priceWithoutTax: double): void`
- `+ getSalesTax(): double`
- `+ setSalesTax(salesTax: double): void`
- `+ getPriceWithTax(): double`
- `+ printReviews(): void`
- `+ searchReviews(): void`
---
**Instructions:**
- Add the `Item(Item item)` constructor which initializes the data fields `name` and `priceWithoutTax` with values of the corresponding data fields of the passed object `item`.
**In Your Main Class:**
1. Implement a method named `createListOfItems` which asks the user about the number of items to be created and returns an array that consists of the passed number of items created using the no-arg constructor.
2. Implement a method named `printItems` which takes an array of items and prints the items’ details to the console as a table as follows:
```
Item name Price without tax Price with tax
.
.
```
3. Implement a method named `searchItem` which takes an array of items and a `String` which represents the name of the item to search for. If an item with the passed name is found, it must be returned. If no item with the passed name is found, the method must return `null`.
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