设计并实现Box类，它包含盒子的高度、宽带和深度的实例数据：还包含布尔变量full这个实例数据，变量full表示盒子是否满了。所有数据都定义为私有。定义Box构造函数接收并初始化盒子的高度、宽带和深度。每次新创建的Box都为空，构造函数将full初始化为假。该类所有实例都有getter和setter方法；该类还包含了一个计算盒子体积的方法。 该类包含一个toString方法，用来返回一行关于盒子的描述。 例如，输入的长、宽、高分别为4，如果盒子为空，则输出： Box is empty, The Volumn is 64 若将盒子的宽度修改为5，盒子设置为满，则输出： Box is full, The Volumn is 80 创建一个测试类BoxTest，其main方法输入盒子的长、宽、高，实例化一个Box对象，并输出盒子的描述。 根据以下的测试类，在空格出填入Box类的设计程序。

public class Box {
    private double height;
    private double width;
    private double depth;
    private boolean full;

    public Box(double height, double width, double depth) {
        this.height = height;
        this.width = width;
        this.depth = depth;
        this.full = false;
    }

    public double getHeight() {
        return height;
    }

    public void setHeight(double height) {
        this.height = height;
    }

    public double getWidth() {
        return width;
    }

    public void setWidth(double width) {
        this.width = width;
    }

    public double getDepth() {
        return depth;
    }

    public void setDepth(double depth) {
        this.depth = depth;
    }

    public boolean isFull() {
        return full;
    }

    public void setFull(boolean full) {
        this.full = full;
    }

    public double calculateVolume() {
        return height * width * depth;
    }

    public String toString() {
        String status = full ? "full" : "empty";
        return "Box is " + status + ", The Volume is " + calculateVolume();
    }
}

测试类BoxTest的代码：

import java.util.Scanner;

public class BoxTest {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter the height of the box: ");
        double height = scanner.nextDouble();
        System.out.print("Enter the width of the box: ");
        double width = scanner.nextDouble();
        System.out.print("Enter the depth of the box: ");
        double depth = scanner.nextDouble();

        Box box = new Box(height, width, depth);
        System.out.println(box);

        System.out.print("Set the width of the box to: ");
        double newWidth = scanner.nextDouble();
        box.setWidth(newWidth);

        System.out.print("Is the box full? (true/false): ");
        boolean isFull = scanner.nextBoolean();
        box.setFull(isFull);

        System.out.println(box);

        scanner.close();
    }
}