Write a program to create object for TreeSet and Stack and use all methods.

♣♣♣ WRITE A PROGRAM TO CREATE OBJECT FOR TREESET AND STACK AND USE ALL METHODS. ♣♣♣

import java.io.*;

import java.util.*;

class pro8

{

            public static void main(String args[]) throws IOException

            {

                        InputStreamReader a =new InputStreamReader(System.in);

                        BufferedReader b =new BufferedReader(a);

                        TreeSet ts=new TreeSet();

                        System.out.print("\nEnter the total no. of Items : ");

                        int n=Integer.parseInt(b.readLine());

                        String str=null;

                        for(int cnt=1;cnt<=n;cnt++)

                        {

                                    System.out.print("\nEnter the "+cnt+" character : ");

                                    str=b.readLine();

                                    ts.add(str);

                        }

                        System.out.println("\n\tThe Item on the tree are : \t"+ts);

                        System.out.println("\n\tThe first item on the tree is : \t"+ts.first());

                        System.out.println("\n\tThe last item on the tree is : \t"+ts.last());

                        System.out.println("\n\tTotal no. of item on the tree are : \t"+ts.size());

                        System.out.print("\nEnter the element you want to delete : ");

                        String del=b.readLine();

                        ts.remove(del);

                        System.out.println("\n\tThe Item on the tree are : \t"+ts);

            }

}

OUTPUT :-

            Enter the total no. of Items :4

Enter the 1 character : we

Enter the 2 character : are

Enter the 3 character : LogicCafe 

Enter the 4 character : Team

The Item on the tree are :                             [are,  LogicCafe , Team, we]

The first item on the tree is :            are

The last item on the tree is : we

Total no. of item on the tree are :    4

Enter the element you want to delete :  we

The Item on the tree are : [are,  LogicCafe , Team]