用java，设计一个Box类，拥有材质，长度，宽度，高度，价格等属性；对各个属性的setter方法和getter方法。

好的，以下是Java实现的Box类：

public class Box {
    private String material;
    private double length;
    private double width;
    private double height;
    private double price;

    public Box(String material, double length, double width, double height, double price) {
        this.material = material;
        this.length = length;
        this.width = width;
        this.height = height;
        this.price = price;
    }

    public String getMaterial() {
        return material;
    }

    public void setMaterial(String material) {
        this.material = material;
    }

    public double getLength() {
        return length;
    }

    public void setLength(double length) {
        this.length = length;
    }

    public double getWidth() {
        return width;
    }

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

    public double getHeight() {
        return height;
    }

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

    public double getPrice() {
        return price;
    }

    public void setPrice(double price) {
        this.price = price;
    }

    @Override
    public String toString() {
        return "Box{" +
                "material='" + material + '\'' +
                ", length=" + length +
                ", width=" + width +
                ", height=" + height +
                ", price=" + price +
                '}';
    }
}

在这个Box类中，我定义了五个属性：材料（material）、长度（length）、宽度（width）、高度（height）和价格（price），并且每个属性都有对应的getter和setter方法。我还重写了toString方法，以便在需要打印对象时更方便。