Back To Java Inheritance Index

//program to demonstrate super keyword

class boxthree
{
    double width;
    double height;
    double depth;
    
    boxthree(boxthree ob)
    {
        width=ob.width;
        height=ob.height;
        depth=ob.depth;
    }
    boxthree(double w,double h,double d)
    {
        width=w;
        height=h;
        depth=d;
    }
    boxthree()
    {
        width=-1;
        height=-1;
        depth=-1;
    }
    boxthree(double len)
    {
        width=height=depth=len;
    }
    double volume()
    {
        return width*height*depth;
    }
}
class boxweightone extends boxthree
{
    double weight;
    boxweightone(boxweightone ob)
    {
        super(ob);
        weight=ob.weight;
        
    }
    boxweightone(double w,double h,double d,double m)
    {
        super(w,h,d);
        weight=m;
              
    } 
    boxweightone()
    {
        super();
        weight=-1;
    }
    boxweightone(double len,double m)
    {
        super(len);
        weight=m;
    }
}
public class boxthreesuper {
     public static void main(String[] args) {
       boxweightone mybox1=new boxweightone(10,20,15,34.3);
       boxweightone mybox2=new boxweightone(2,3,4,0.076);
       boxweightone mybox3=new boxweightone();
       boxweightone mycube=new boxweightone(3,2);
       boxweightone myc=new boxweightone(mybox1);
       double vol;
       vol=mybox1.volume();
       System.out.println("Volume of mybox1 is " + vol);
       System.out.println("Weight of mybox1 is " + mybox1.weight);
       System.out.println();
       vol=mybox2.volume();
       System.out.println("Volume of mybox2 is " + vol);
       System.out.println("Weight of mybox2 is " + mybox2.weight);
       System.out.println();
       vol=mybox3.volume();
       System.out.println("Volume of mybox3 is " + vol);
       System.out.println("Weight of mybox3 is " + mybox3.weight);
       System.out.println();
        vol=myc.volume();
       System.out.println("Volume of myc is " + vol);
       System.out.println("Weight of myc is " + myc.weight);
       System.out.println();
       vol=mycube.volume();
       System.out.println("Volume of mycube is " + vol);
       System.out.println("Weight of mycube is " + mycube.weight);
       System.out.println();
}
}