Box.java

import java.awt.Color;

public class Box extends Rectangle {
    private int length;

    public Box() {
        super(3, 5, 4, Color.BLUE);
        this.length = 4;
    }

    public Box(int width, int height, int length, Color color) {
        super(width, height, length, color);
        this.length = length;
    }

    public Box(int newX, int newY, int newWidth, int newHeight, int newLength) {
        super(newX, newY, newWidth, newHeight);
        length = newLength;

    }

    public void setLength (int length){
        this.length = length;
        setY((int) Math.ceil((double) length / 2));
    }

    public int getLength (){
        return length;
    }

    public int calcArea(){
        return getWidth() * getHeight() * 2 + getWidth() * length * 2 + getHeight() * length * 2;

    }

    public DrawFigure drawFigure() {
        DrawFigure box1 = new DrawFigure(2, getWidth(), getHeight(), length);
        return box1;
    }


    public int calcVolume(){
        return getWidth() * getHeight()* length;
    }

    public String toString(){
        return "Length = " + length + " " +  super.toString();
    }

}