How to get elements of a LinkedList?


Levels of difficulty: / perform operation:



JAVA Program

import java.util.*;
public class Main {
	private LinkedList list = new LinkedList();
	public void push(Object v) {
		list.addFirst(v);
	}
	public Object top() {
		return list.getFirst();
	}
	public Object pop() {
		return list.removeFirst();
	}
	public static void main(String[] args) {
		Main stack = new Main();
		for (int i = 30; i < 40; i++)
		         stack.push(new Integer(i));
		System.out.println(stack.top());
		System.out.println(stack.pop());
		System.out.println(stack.pop());
		System.out.println(stack.pop());
	}
}



Output

39
39
38
37





Quantitative Aptitude
Reasoning
Programming
Interview