import java.io.*;
import java.util.*;
class shop
{
DataInputStream ds = new DataInputStream(System.in);
void append(Vector v1) throws IOException
{
System.out.println("Enter the element to be Appended");
System.out.println("Current capacity :"+ v1.capacity());
v1.insertElementAt(ds.readLine(),v1.capacity());
System.out.println("Append Successfully");
}
void insert(Vector v1) throws IOException
{
System.out.println("Enter the position to be inserted");
Integer x2 = new Integer(ds.readLine());
Integer pos = x2.intValue();
System.out.println("Enter the element");
v1.insertElementAt(ds.readLine(), pos);
System.out.println("Inserted Successfully");
}
void delete(Vector v1) throws IOException
{
System.out.println("Enter the position to be deleted");
Integer x1 = new Integer(ds.readLine());
Integer pos = x1.intValue();
v1.removeElementAt(pos);
System.out.println("Deleted Successfully");
}
void display(Vector v1) throws IOException
{
int i=0;
Enumeration vEnum = v1.elements();
System.out.println("\t\t\t Shopping List");
System.out.println("-----------------------");
System.out.println("Items in Vector");
System.out.println("Position Item");
while(vEnum.hasMoreElements())
{
System.out.println(i+"\t\t" +vEnum.nextElement());
i++;
}
}
}
class shoppinglist {
public static void main(String arg[]) throws IOException
{
Vector v = new Vector(5,10);
shop ob = new shop();
DataInputStream ds = new DataInputStream(System.in);
for (int i=0; i<arg.length; i++)="" {="" v.addelement(arg[i]);="" }="" ob.display(v);="" while(true)="" system.out.println("\t\t\t="" shopping="" list");="" ----------------");="" system.out.println("1.="" append");="" system.out.println("2.="" delete");="" system.out.println("3.="" insert");="" system.out.println("4.="" display");="" system.out.println("5.="" exit';");="" system.out.println("enter="" ur="" choice");="" int="" ch="Integer.parseInt(ds.readLine());" switch(ch)="" case="" 1:="" ob.append(v);="" break;="" 2:="" ob.delete(v);="" 3:="" ob.insert(v);="" 4:="" 5:="" system.exit(0);="" default:="" correct=""
