**Java Class Diagram Explanation and Implementation****Challenge 3: Vehicle.java, Automobile.java, Tank.java, Truck.java, Car.java, and TestVehicle.java**Implement the classes as given in the class diagram. Also, implement a `TestVehicle` class where you will create three objects and execute their `toString()` methods.### Class Diagram Overview:#### 1. **Vehicle Class** - **Attributes:** - `year: int` - `weight: double` - **Methods:** - `Vehicle(int, double)` - `getYear(): int` - `setYear(int): void` - `getWeight(): double` - `setWeight(double): void` - `toString(): String`#### 2. **Automobile Class (inherits from Vehicle)** - **Attributes:** - `licensePlate: String` - `make: String` - **Methods:** - `Automobile()` - `Automobile(int, double, String, String)` - `getLicensePlate(): String` - `setLicensePlate(String): void` - `getMake(): String` - `setMake(String): void` - `toString(): String` - **Derived Classes:** - **Truck (inherits from Automobile)** - **Attributes:** - `towCapacity: double` - **Methods:** - `Truck()` - `Truck(int, double, String, String, double)` - `getTowCapacity(): double` - `setTowCapacity(double): void` - `toString(): String` - **Car (inherits from Automobile)** - **Attributes:** - `maxPassengers: int` - **Methods:** - `Car()` - `Car(int, double, String, String, int)` - `getMaxPassengers(): int` - `setMaxPassengers(int): void` - `toString(): String`#### 3. **Tank Class (inherits from Vehicle)** - **Attributes:** - `armorWidth: double` - **Methods:** - `Tank()` - `Tank(int, double, double)` - `getArmorWidth(): double` - `setArmorWidth(double): void` - `toString(): String` The image illustrates a UML class diagram for a Java program, demonstrating the inheritance relationships and methods among the classes `Automobile`, `Truck`, `Car`, and `Tank` within package `assignment2`.### Class Structure:1. **Automobile** - Attributes: - `licensePlate`: String - `make`: String - Methods: - `Automobile()`: Default constructor - `Automobile(int, double, String, String)`: Parameterized constructor - `getLicensePlate()`: Retrieves license plate - `setLicensePlate(String)`: Sets license plate - `getMake()`: Retrieves make - `setMake(String)`: Sets make - `toString()`: Returns a string representation2. **Truck** (inherits from `Automobile`) - Attributes: - `towCapacity`: double - Methods: - `Truck()`: Default constructor - `Truck(int, double, String, String, double)`: Parameterized constructor - `getTowCapacity()`: Retrieves tow capacity - `setTowCapacity(double)`: Sets tow capacity - `toString()`: Returns a string representation3. **Car** (inherits from `Automobile`) - Attributes: - `maxPassengers`: int - Methods: - `Car()`: Default constructor - `Car(int, double, String, String, int)`: Parameterized constructor - `getMaxPassengers()`: Retrieves maximum passengers - `setMaxPassengers(int)`: Sets maximum passengers - `toString()`: Returns a string representation4. **Tank** (inherits from `Automobile`) - Attributes: - `armorWidth`: double - Methods: - `Tank()`: Default constructor - `Tank(int, double, double)`: Parameterized constructor - `getArmorWidth()`: Retrieves armor width - `setArmorWidth(double)`: Sets armor width - `toString()`: Returns a string representation### Sample Output:```Honda: Year: 2006 weight: 2100.56 License Plate: 1RT245 Make: Honda MaxPassengers: 5Dodge: Year: 2009 weight: 2500.45 License Plate: 2tu123 Make: Dodge Tow capacity:

We need to define the classes :

Answered: Implement the classes that are given in…

Implement the classes that are given in the class diagram. Also implement a TestVehicle class where you will create three objects and execute their toString() methods.

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

Math class and its different methods

Java math class consists of arithmetic math methods that performs basic numeric operations such as finding the maximum or minimum of two values, rounding values, logarithmic functions, square root, and trigonometric functions, etc. The Math library functions can be accessed using the header Java.lang.Math. These math methods under Java math class are for our convenience.

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**Java Class Diagram Explanation and Implementation**

**Challenge 3: Vehicle.java, Automobile.java, Tank.java, Truck.java, Car.java, and TestVehicle.java**

Implement the classes as given in the class diagram. Also, implement a `TestVehicle` class where you will create three objects and execute their `toString()` methods.

### Class Diagram Overview:

#### 1. **Vehicle Class**
- **Attributes:**
- `year: int`
- `weight: double`
- **Methods:**
- `Vehicle(int, double)`
- `getYear(): int`
- `setYear(int): void`
- `getWeight(): double`
- `setWeight(double): void`
- `toString(): String`

#### 2. **Automobile Class (inherits from Vehicle)**
- **Attributes:**
- `licensePlate: String`
- `make: String`
- **Methods:**
- `Automobile()`
- `Automobile(int, double, String, String)`
- `getLicensePlate(): String`
- `setLicensePlate(String): void`
- `getMake(): String`
- `setMake(String): void`
- `toString(): String`

- **Derived Classes:**

- **Truck (inherits from Automobile)**
- **Attributes:**
- `towCapacity: double`
- **Methods:**
- `Truck()`
- `Truck(int, double, String, String, double)`
- `getTowCapacity(): double`
- `setTowCapacity(double): void`
- `toString(): String`

- **Car (inherits from Automobile)**
- **Attributes:**
- `maxPassengers: int`
- **Methods:**
- `Car()`
- `Car(int, double, String, String, int)`
- `getMaxPassengers(): int`
- `setMaxPassengers(int): void`
- `toString(): String`

#### 3. **Tank Class (inherits from Vehicle)**
- **Attributes:**
- `armorWidth: double`
- **Methods:**
- `Tank()`
- `Tank(int, double, double)`
- `getArmorWidth(): double`
- `setArmorWidth(double): void`
- `toString(): String`

The image illustrates a UML class diagram for a Java program, demonstrating the inheritance relationships and methods among the classes `Automobile`, `Truck`, `Car`, and `Tank` within package `assignment2`.

### Class Structure:
1. **Automobile**
- Attributes:
- `licensePlate`: String
- `make`: String
- Methods:
- `Automobile()`: Default constructor
- `Automobile(int, double, String, String)`: Parameterized constructor
- `getLicensePlate()`: Retrieves license plate
- `setLicensePlate(String)`: Sets license plate
- `getMake()`: Retrieves make
- `setMake(String)`: Sets make
- `toString()`: Returns a string representation

2. **Truck** (inherits from `Automobile`)
- Attributes:
- `towCapacity`: double
- Methods:
- `Truck()`: Default constructor
- `Truck(int, double, String, String, double)`: Parameterized constructor
- `getTowCapacity()`: Retrieves tow capacity
- `setTowCapacity(double)`: Sets tow capacity
- `toString()`: Returns a string representation

3. **Car** (inherits from `Automobile`)
- Attributes:
- `maxPassengers`: int
- Methods:
- `Car()`: Default constructor
- `Car(int, double, String, String, int)`: Parameterized constructor
- `getMaxPassengers()`: Retrieves maximum passengers
- `setMaxPassengers(int)`: Sets maximum passengers
- `toString()`: Returns a string representation

4. **Tank** (inherits from `Automobile`)
- Attributes:
- `armorWidth`: double
- Methods:
- `Tank()`: Default constructor
- `Tank(int, double, double)`: Parameterized constructor
- `getArmorWidth()`: Retrieves armor width
- `setArmorWidth(double)`: Sets armor width
- `toString()`: Returns a string representation

### Sample Output:

```
Honda: Year: 2006 weight: 2100.56 License Plate: 1RT245 Make: Honda MaxPassengers: 5
Dodge: Year: 2009 weight: 2500.45 License Plate: 2tu123 Make: Dodge Tow capacity:

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