数据结构 栈 java 自带的数据结构 java栈 package com.dg.brady;importjava.util.Stack;publicclassStackDemo{publicstaticvoidmain(String[] args){ Stack<String> stack =newStack<>(); stack.add("a"); stack.add("b"); stack.add("c");while(stack.size() >0){ System.out.println(stack.pop())...