CODE EXAMPLE FOR JAVA

Implement stack using Linked List Java

public class LinkedListStack {
    private Node head; // the first node
 
    // nest class to define linkedlist node
    private class Node {
        int value;
        Node next;
    }
 
    public LinkedListStack() {
        head = null;
    }
 
    // Remove value from the beginning of the list for demonstrating behaviour of stack
    public int pop() throws LinkedListEmptyException {
        if (head == null) {
            throw new LinkedListEmptyException();
        }
        int value = head.value;
        head = head.next;
        return value;
    }
 
    // Add value to the beginning of the list for demonstrating behaviour of stack
    public void push(int value) {
        Node oldHead = head;
        head = new Node();
        head.value = value;
        head.next = oldHead;
    }
 
    public static void main(String args[]) 
    {
        LinkedListStack lls=new LinkedListStack();
        lls.push(20);
        lls.push(50);
        lls.push(80);
        lls.push(40);
        lls.push(60);
        lls.push(75);
        System.out.println("Element removed from LinkedList: "+lls.pop());
        System.out.println("Element removed from LinkedList: "+lls.pop());
        lls.push(10);
        System.out.println("Element removed from LinkedList: "+lls.pop());
        printList(lls.head);
    }
    public static void printList(Node head) {
        Node temp = head;
        while (temp != null) {
            System.out.format("%d ", temp.value);
            temp = temp.next;
        }
        System.out.println();
    }
}
 
/**
 * 
 * Exception to indicate that LinkedList is empty.
 */
 
class LinkedListEmptyException extends RuntimeException {
    private static final long serialVersionUID = 1L;
 
    public LinkedListEmptyException() {
        super();
    }
 
    public LinkedListEmptyException(String message) {
        super(message);
    }
}