**Problem Statement****Inheritance**Write the **Bicycle** class which extends **Vehicle**. The UML diagram is shown below. **Follow it exactly.**---### UML Diagrams Explanation#### Vehicle Class Diagram- **Fields:** - `owner` : string - `wheels` : int- **Methods:** - `getWheels()` : int - `toString()` : string - `Vehicle(string owner, int wheels)`#### Bicycle Class Diagram- **Fields:** - `gears` : int - `model` : string- **Methods:** - `Bicycle(string o, int w, string mod, int gear)` - `getGearRatio()` : int - `toString()` : string---### Implementation Requirements- The **Bicycle** constructor must call the superclass constructor to initialize `owner` and `wheels`.- `getGearRatio()` returns the product of `gears` and `wheels`.- Override the `toString()` method and return the information in this form, all on one line: - `Bicycle(model="Trek T700", gears=21) extends Vehicle(owner="V. Nibali", wheels=2)` - Read a UML diagram to determine the new methods and/or instance variables.- Define instance variables, accessors, and mutators.- Define a constructor to initialize those variables.- Define constructors for your subclasses and call the superclass constructor.- Override superclass methods by combining and extending their behavior.- Override the **toString** method in a subclass.**Note:** There is no printing, and you will not need Scanners, or do any input.

public class Vehicle { private String owner; private int wheels; public Vehicle(String owner, int wheels) { this.owner = owner; this.wheels = wheels; } public int getWheels() { return wheels; } public String toString() { return "Vehicle(owner=\"" + owner + "\", wheels=" + wheels + ")"; }}public class Bicycle extends Vehicle { private String model; private int gears; public Bicycle(String o, int w, String mod, int gear) { super(o, w); this.model = mod; this.gears = gear; } public int getGearRatio() { return this.gears * getWheels(); } public String toString() { return "Bicycle(model=\"" + model + "\", gears=" + gears + ") extends " + super.toString(); }}class Test125 { public static void main(String args[]) { Bicycle b1 = new Bicycle("V. Nibali", 2, "Trek T700", 21); System.out.println(b1); System.out.println(b1.getGearRatio()); }}

Engineering

Computer Science

Write the Bicyle class which extends Vehicle. The UML diagram is shown below. Follow it exactly. Vehicle Clees Felds owner string wheels int Methods • petwheels)int • toring)string • vehidetstring owner, int wheels) Bkycle Ches Felds gears int model string Methods • Boydestring e, int w, string mod, t gear) • ortGeartatio0 int • teing): string • The Bicycle constructor call the superclass constructor to initialize owner and wheels getGearRatio(0 returns the product of gears and wheels. (Stupid, I know.) • Override the toString) method and return the information in this form, all on one line: Bicycle(model="Trek T700", gears-21) extends Vehicle(owner="V. Nibali", wheels=2)

Write the Bicyle class which extends Vehicle. The UML diagram is shown below. Follow it exactly. Vehicle Clees Felds owner string wheels int Methods • petwheels)int • toring)string • vehidetstring owner, int wheels) Bkycle Ches Felds gears int model string Methods • Boydestring e, int w, string mod, t gear) • ortGeartatio0 int • teing): string • The Bicycle constructor call the superclass constructor to initialize owner and wheels getGearRatio(0 returns the product of gears and wheels. (Stupid, I know.) • Override the toString) method and return the information in this form, all on one line: Bicycle(model="Trek T700", gears-21) extends Vehicle(owner="V. Nibali", wheels=2)

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

**Problem Statement**

**Inheritance**

Write the **Bicycle** class which extends **Vehicle**. The UML diagram is shown below. **Follow it exactly.**

---

### UML Diagrams Explanation

#### Vehicle Class Diagram
- **Fields:**
- `owner` : string
- `wheels` : int
- **Methods:**
- `getWheels()` : int
- `toString()` : string
- `Vehicle(string owner, int wheels)`

#### Bicycle Class Diagram
- **Fields:**
- `gears` : int
- `model` : string
- **Methods:**
- `Bicycle(string o, int w, string mod, int gear)`
- `getGearRatio()` : int
- `toString()` : string

---

### Implementation Requirements
- The **Bicycle** constructor must call the superclass constructor to initialize `owner` and `wheels`.
- `getGearRatio()` returns the product of `gears` and `wheels`.
- Override the `toString()` method and return the information in this form, all on one line:
- `Bicycle(model="Trek T700", gears=21) extends Vehicle(owner="V. Nibali", wheels=2)`

- Read a UML diagram to determine the new methods and/or instance variables.
- Define instance variables, accessors, and mutators.
- Define a constructor to initialize those variables.
- Define constructors for your subclasses and call the superclass constructor.
- Override superclass methods by combining and extending their behavior.
- Override the **toString** method in a subclass.

**Note:** There is no printing, and you will not need Scanners, or do any input.

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