Create an abstract class “order” having members id,description.Create two subclasses “Purchase Order” and “Sales Order” having members customer name and Vendor name respectively.Define methods accept and display in all cases. Create 3 objects each of Purchase Order and Sales Order and accept and display details.

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
abstract class Order{
String id,description;
}
class PurchaseOrder extends Order{
String Customername,Vendorname;
public void accept() throws IOException{
System.out.println("Enter the id,description,names of customers and vendors: ");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
id=br.readLine();
description=br.readLine();
Customername=br.readLine();
Vendorname=br.readLine();
}
public void display(){
System.out.println("id: "+id);
System.out.println("Description: "+description);
System.out.println("Customername: "+Customername);
System.out.println("Vendorname: "+Vendorname);
System.out.println("----------------------");
}
}
class SalesOrder extends Order{
String Customername,Vendorname;
public void accept() throws IOException{
System.out.println("Enter the id,description,names of customers and vendors: ");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
id=br.readLine();
description=br.readLine();
Customername=br.readLine();
Vendorname=br.readLine();
}
public void display(){
System.out.println("id: "+id);
System.out.println("Description: "+description);
System.out.println("Customername: "+Customername);
System.out.println("Vendorname: "+Vendorname);
System.out.println("----------------------");
}
}
public class Main {
public static void main(String [] args) throws IOException{

int i;
System.out.println("Select Any One: ");
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
System.out.println("1.Purchase Order");
System.out.println("2.Sales Order");
int ch=Integer.parseInt(br.readLine());
switch(ch){
case 1:
System.out.println("Enter the number of purchase Orders: ");
int n=Integer.parseInt(br.readLine());
PurchaseOrder [] l=new PurchaseOrder[n];
for(i=0;i<n;i++){
l[i]=new PurchaseOrder();
l[i].accept();
}
for(i=0;i<n;i++){
l[i].display();
System.out.println ("Object is created");
}
break;
case 2:
System.out.println("Enter the number of sales orders: ");
int m=Integer.parseInt(br.readLine());
SalesOrder [] h=new SalesOrder[m];
for(i=0;i<m;i++){
h[i]=new SalesOrder();
h[i].accept();
}
for(i=0;i<m;i++){
h[i].display();
System.out.println(" Object is created ");
}
break;

}
}
}

Output:

Select Any One:
1.Purchase Order
2.Sales Order
1
Enter the number of purchase Orders:
2
Enter the id,description,names of customers and vendors:
1
Soap
Rahul
Gajni
Enter the id,description,names of customers and vendors:
2

Handwash
prince
abhishek
id: 1
Description: Soap
Customername: Rahul
Vendorname: Gajni
----------------------
Object is created
id: 2
Description: Handwash
Customername: prince
Vendorname: abhishek
----------------------
Object is created