//Complete the class declaration here: class CarStock { pu…
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//Cоmplete the clаss declаrаtiоn here: class CarStоck { public: ; // Constructor that uses three parameters. The first one is the year, the second the name of the car maker and the third the model. // The quantity of cars in the inventory should be set to zero. ;// Constructor that uses one parameter. The parameter is a reference to a CarStock object that cannot be modified.// The constructor must initialize all member variables according to the object provided as parameter. getCarsInStock( );// Accessor function that returns the current quantity of cars in stock. addNewCar( );// Function that takes a number of cars received from the manufacturer // as a parameter and adds this value to the quantity in inventory sale( );// Function that takes a number of units sold as a parameter and// updates the quantity in inventory for this car. Inventory can't be negative.private:string year; // variable holds 20 char for the year the car was manufactured ; // variable holds the car manufacturer name ; // variable holds the car model name ; // variable holds number of units in stock}; //Function definition(Implementation)//Type the implementation code: ( ){ // Constructor that uses three parameters. The first the year, the second the name of the manufacturer and // the third the model name. // The quantity in the inventory should be set to zero.} ( ){// Constructor that uses one parameter. The parameter is a reference to a CarStock object that cannot be modified.// The constructor must initialize all member variables according to the object provided as parameter.} getCarsInStock ( ){// Accessor function that returns the current quantity of cars in stock. } addNewCar ( );{// Function that takes a number of units received from a manufacturer// as a parameter and adds this value to the quantity in inventory } sale ( );{// Function that takes a number of units sold as a parameter and// updates the quantity in inventory for this car. Inventory can't be negative.}