package oop_final;

public class Inventory {
      int FZS;
     int R15_V3;
   int Fazer;
    int R15_V2;

    public Inventory() {
        this.FZS = 100;
        this.R15_V3 = 100;
        this.Fazer = 100;
        this.R15_V2 = 100;
    }
    void sellFZS()throws MyException{

        if(FZS < 30)
        {
             this.FZS=100;
             throw new MyException();

        }
        else{
            FZS--;
             System.out.println("FZS= "+FZS);
        }
    }
        void sellR15_V3()throws MyException{

        if(R15_V3 < 40)
        {
             this.R15_V3=100;
             throw new MyException();

        }
        else{
            R15_V3--;
             System.out.println("R15_V3 = "+R15_V3);

        }

    }
       void sellFazer()throws MyException{

        if(Fazer < 34)
        {
             this.Fazer=100;
             throw new MyException();

        }
        else{
            Fazer--;
             System.out.println("Fazer = "+Fazer);
        }

    }
       void sellR15_V2()throws MyException{

        if(R15_V2 < 50)
        {
             this.R15_V2=100;
             throw new MyException();

        }
        else{
            R15_V2--;
             System.out.println("R15_V2 = "+R15_V2);
        }

    }
}

*********************************************************

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package oop_final;

/**
 *
 * @author Naimul
 */
public class Showroom extends Inventory {

     void sellFZS()throws MyException{

        if(FZS < 30)
        {
             this.FZS=100;
             throw new MyException();

        }
        else{
            FZS--;
             System.out.println("FZS= "+FZS);
        }
    }
        void sellR15_V3()throws MyException{

        if(R15_V3 < 40)
        {
             this.R15_V3=100;
             throw new MyException();

        }
        else{
            R15_V3--;
             System.out.println("R15_V3 = "+R15_V3);

        }

    }
       void sellFazer()throws MyException{

        if(Fazer < 34)
        {
             this.Fazer=100;
             throw new MyException();

        }
        else{
            Fazer--;
             System.out.println("Fazer = "+Fazer);
        }

    }
       void sellR15_V2()throws MyException{

        if(R15_V2 < 50)
        {
             this.R15_V2=100;
             throw new MyException();

        }
        else{
            R15_V2--;
             System.out.println("R15_V2 = "+R15_V2);
        }


    }
}

************************************************


package oop_final;


public class Test {
    public static void main(String[] args) throws MyException {
        Inventory ob = new Inventory();
        Showroom ob1=new Showroom();
        try{
            for(int i=0;i<75;i++)
            {
              ob.sellFZS();
            }

        }
        catch(Exception e)
        {
            System.out.println("Inventory running dry");
        }
         ob.sellFZS();
         ob1.sellFazer();
         ob1.sellFazer();
    }
}