Zero Exception – Java, Spring Boot & System Design Tutorials

Write a Java program to accept names of n students and insert into LinkedList. Display the contents of list using Iterator and also Display the content in reverse order using ListIterator.

Program:

import java.io.*;
import java.util.*;

class ReverseLinkedList {
    public static void main(String args[]) throws IOException {
        LinkedList students = new LinkedList();
        String str;
        int i, n;
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        System.out.println("Enter how many names:");
        n = Integer.parseInt(br.readLine());
        for(i=0;i<n;i++){
            System.out.println("Enter the names of students:");
            str = br.readLine();
            students.add(str);
        }
        Iterator itr = students.iterator();
        System.out.println("Content of LinkedList using Iterator");
        while(itr.hasNext()){
            System.out.println(itr.next());
        }
        System.out.println("Content of LinkedList in reverse using ListIterator");
        ListIterator litr = students.listIterator();
        while(litr.hasNext()){
            litr.next();
        }
        while(litr.hasPrevious()){
            System.out.println(litr.previous());
        }

    }
}