public class Parcel

$\{$

private double weight; $//$The parcels weight in kilos

private int width; $//$ the parcel's width in cms

private int length; $//$the parcel's length in cms

private int height; $//$The parcel's height in cms

$/**$ the maximum permissible length of the parcel in cms $*/$

public static final int LENGTH$\_$LIMIT $=120$;

$/**$ the maximum permissible size of the parcel in cms $*/$

public static final int SIZE$\_$LIMIT $=245$;

$/**$ the maximum permissible size of the parcel in kilos $*/$

public static final int WEIGHT$\_$LIMIT $=5$;

$/**$

$*$ @return the weight

$*/$

public double getWeight$()$

$\{$

return weight;

$\}$

$///**$

$//*$ Equals method for this object.

$//*$ @return true if objects compared are same class or subclass and

$//*$ have the same address and dateSent

$//*/$

$//$ public boolean equals$($Object o$)$

$//\{$

$//$ if$($o $!=$ null && o instanceof Parcel$)$

$//\{$

$//$ Parcel p $=($Parcel$)$ o;

$//$ return getAddress$().$equals$($p$.$getAddress$())$ && getDateSent$().$equals$($p$.$getDateSent$())$;

$//\}$

$//$ return false;

$//\}$

$///**$

$//*$

$//*$ @return a string representation of the parcel

$//*/$

$//$ public String toString$()$

$//\{$

$//$ String returnString $=$ "A parcel for $"+$ getAddress$()+"$

Weight $"+$ weight $+$

$//"$Kg$,$ Width $"+$ width $+"$cms$,$ Height $"+$ height $+"$cms$,$ Length $"+$ length $+"$cms$."$;

$//$ return returnString;

$//\}$

$\}$

In this part you will complete the class Parcel, which already has the following private fields:

weight, of type double, the weight of the parcel in kilos,

width, of type int, which holds the width of the parcel in cms$,$

length, of type int, which holds the length of the parcel in cms$,$

height, of type int, which holds the height of the parcel in cms$.$

In addition, there are three public integer class constants:

LENGTH$\_$LIMIT, the maximum length of a parcel that can be carried,

SIZE$\_$LIMIT, the maximum size $($derived from a formula supplied by the courier company$),$

WEIGHT$\_$LIMIT, the maximum weight in kilos.

The class has a getter method for weight as well as equals and toString methods, which are initially commented out.

i$.$Alter the header of Parcel so it inherits from Freight and add a public constructor to the class Parcel with the signature:

Parcel$($String$,$ double, int, int, int$)$

The constructor$$s first parameter is used to set the address, and the other four parameters to set the values of the four instance fields of Parcel in the order described above.

The field dateSent should be set to an empty string.

Uncomment the provided methods equals and toString.