LinkedList实现堆栈
public?static?void?main(String[]?args) ????{ ???????? MyStack?ms=new?MyStack(); ???????? ms.push("one"); ???????? ms.push("two"); ???????? ms.push("three"); ???????? ???????? System.out.println(ms.pop()); ???????? System.out.println(ms.pop()); ???????? System.out.println(ms.empty()); ???? }