package test;

public class LNodeStack {
	private LNode head;
	private final static int SIZE = 100;
	int len;

	public LNodeStack() {
		head = new LNode();
	}

	public void plus(String name) {
		LNode newLNode = new LNode(name);
		if (len > SIZE - 1) {
			System.out.println("栈已满!");
			return;
		}
		newLNode.next = head.next;
		head.next = newLNode;
		len++;
	}

	public String pop() {
		if (head.next == null) {
			System.out.println("栈以空!");
			return null;
		}
		String name=head.next.name;
		head.next = head.next.next;
		len--;
		return name;
	}

	public void display() {
		if (head.next == null) {
			System.out.println("栈以空!");
			return;
		}
		for (LNode node = head.next; node != null; node = node.next) {
			System.out.println(node.name + " ");
		}
		System.out.println("本次打印已完成!");
	}

}