"Java Multilevel Inheritance Explained: Master Object-Oriented Programming!"

#coding
Multilevel Inheritance
Multilevel inheritance in Java is a type of inheritance in which a class that is already inherited by another class, inherits another class.
Simply the mechanism of deriving a class from another subclass is known as multilevel inheritance. The process can be extended to an arbitrary number of levels. The general form and figures are given below:
//Multilevel inheritance
class A{
//fields and methods of A
}
class B extends A{
//fields and methods of B
}

public class C extends B{
//fields and methods of C
}

The figure of Multilevel inheritance


Example:
package singleinheritance;

class Box{
private double width;
private double height;
private double depth;
Box(double w, double h, double d){
width=w;
height=h;
depth=d;
}
double volume() {
return width*height*depth;
}
}
class BoxWeight extends Box{
double weight;
BoxWeight(double w, double h, double d, double m){
super(w,h,d); //calling superclass conductor
weight=m;
}

}
class Shipment extends BoxWeight{
double cost;
Shipment(double w, double h, double d, double m, double c){
super(w,h,d,m);
cost=c;
}
}
public class TestMultilevel {
public static void main(String[] args) {
Shipment ship1=new Shipment(1,2,3,5,3.41);
Shipment ship2=new Shipment(2,4,6,10,1.28);
double vol;
vol=ship1.volume();
System.out.println("The volume of shipment is ="+vol);
System.out.println("The weight of shipment is ="+ship1.weight);
System.out.println("Shipping cost:Rs."+ship1.cost);
System.out.println();
vol=ship2.volume();
System.out.println("The volume of shipment2 is "+vol);
System.out.println("The weight of shipment2 is "+ship2.weight);
System.out.println("Shipping cost:Rs."+ship2.cost);

}

}

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