Box.java

package Practice;

public class Box {
    double height;
    double width;
    double length;

    // constructor - no return type
    Box( double l, double w, double h ) {
        height = h;
        width = w;
        length = l;
    }

    // Constructor Overloading
    Box() {
        height = -1;
        width = -1;
        length = -1;
    }
    Box( double val ) {
        height = width = length = val;
    }

    void setValues( double l, double w, double h ) {
        length = l;
        width = w;
        height = h;
    }

    double getVolume() {
        return height * width * length;
    }
}