Use LinkedList to simulate the collection class of the stack data structure and test

Use LinkedList to simulate the collection class of the stack data structure and test

1. Topic

    Please use LinkedList to simulate a collection of stack data structures and test.

    The meaning of the title is: You define a collection class yourself, so that the collection class behaves like a stack data structure, and LinkedList can be used inside this collection class.

2. Code demonstration

(1) Define the collection class

package cn.itcast_05;
import java.util.LinkedList;

public class MyStack {
	private LinkedList link;

	public MyStack () {
		link = new LinkedList();
	}

	public void add(Object obj) {
		link.addFirst(obj);
	}

	public Object get() {
		return link.removeFirst();
	}

	public boolean isEmpty() {
		return link.isEmpty();
	}
}

(2) Test collection class

package cn.itcast_05;
 
public class MyStackDemo {
	public static void main(String[] args) {
		// create collection object
		MyStack ms = new MyStack ();

		// add element
		ms.add("hello");
		ms.add("world");
		ms.add("java");
		
		while(!ms.isEmpty()){
			System.out.println(ms.get());
		}
	}
}