Using the attached Java classes (Car.java and Wheel.java) as a guide, create a representative JSON string that might be produced upon serialization of a Car object. You are free to populate the Car and Wheel object properties with any data you like.

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package edu.uark.models.api; import org.apache.commons.lang3.StringUtils; public class Car { private String make; public String getMake() { return this.make; } public Car setMake(String make) { this.make = make; return this; } private String model; public String getModel() { return this.model; } public Car setModel(String model) { this.model = model; return this; } private int year; public int getYear() { return this.year; } public Car setYear(int year) { this.year = year; return this; } private double price; public double getPrice() { return this.price; } public Car setPrice(double price) { this.price = price; return this; } private Wheel[] wheels; public Wheel[] getWheels() { return this.wheels; } public Car setWheels(Wheel[] wheels) { this.wheels = wheels; return this; } public Car() { this.year = 0; this.price = 0D; this.wheels = new Wheel[0]; this.make = StringUtils.EMPTY; this.model = StringUtils.EMPTY; } } 

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package edu.uark.models.api; import org.apache.commons.lang3.StringUtils; public class Wheel { private String make; public String getMake() { return this.make; } public Wheel setMake(String make) { this.make = make; return this; } private String model; public String getModel() { return this.model; } public Wheel setModel(String model) { this.model = model; return this; } private int width; public int getWidth() { return this.width; } public Wheel setWidth(int width) { this.width = width; return this; } private int aspectRatio; public int getAspectRatio() { return this.aspectRatio; } public Wheel setAspectRatio(int aspectRatio) { this.aspectRatio = aspectRatio; return this; } private int diameter; public int getDiameter() { return this.diameter; } public Wheel setDiameter(int diameter) { this.diameter = diameter; return this; } private int loadIndex; public int getLoadIndex() { return this.loadIndex; } public Wheel setLoadIndex(int loadIndex) { this.loadIndex = loadIndex; return this; } public Wheel() { this.width = 0; this.diameter = 0; this.loadIndex = 0; this.aspectRatio = 0; this.make = StringUtils.EMPTY; this.model = StringUtils.EMPTY; } } 

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