InventoryControl program in which InventorySold and UseInventorySold inherit parts of the InventoryControl

import javax.swing.*;

public class DialogInitials
{
_public static void main(String[]args)
_{
__int teaCalculate;

__String teaName = JOptionPane.showInputDialog(null,"Please enter the name of the tea:");
__//JOptionPane.showMessageDialog(null,response);

__String teaNumber = JOptionPane.showInputDialog(null,"Please enter the number of boxes on hand:");

__try
___{
____int value = Integer.parseInt(teaNumber);
___}

__catch(NumberFormatException e)
___{
____JOptionPane.showMessageDialog(null,"Invalid entry");
____System.exit(1);
___}

__String teaUsed = JOptionPane.showInputDialog(null,"Please enter the number of boxes used:");

__try
_____{
______int value = Integer.parseInt(teaUsed);
_____}

____catch(NumberFormatException e)
_____{
______JOptionPane.showMessageDialog(null,"Invalid entry");
______System.exit(1);
_____}

_____int x=Integer.parseInt(teaNumber);
_____int y=Integer.parseInt(teaUsed);

_____teaCalculate= x-y;





__System.out.println("The Tea is " + teaName);
__System.out.println("The number of boxes on hand " + teaNumber);
__System.out.println("The number of boxes used " + teaUsed);
__//JOptionPane.showConfirmDialog(null,"Are the initials correct?");
__System.out.println("The number of boxes left is " + teaCalculate);
__System.exit(0);
_}
}

I am writing a inventory program to keep track track of the tea i serve to my customer.The program will allow me to enter the name of tea,the number of boxes on hand, and the number of boxes remaining. I have the first functioning program call DialogInitial(InventoryControl), I need to use inheritance between these three program{InventoryControl,InventorySold, and UseInventorySold} How should i write the other two programs to inherit information from the first program,then second, and third program????
AminhallAsked:
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girionisCommented:
 Inheritance is done through extending a class. So if you want to inherit from class A in a class B you just do a

public class B extends A

  same for other subclasses

public class C extends B

(class C inherits from both B and A).

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