Principle To avoid liveness and safety failures, never cede control to the client within a synchronized method or block. Do as little work as possible inside synchronized regions. You should make a mutable class thread-safe (Item 70) if it is intende
67. Add Binary Given two binary strings, return their sum (also a binary string). For example,a = "11"b = "1"Return "100". 两个字符串存储二进制数,进行二进制加法,返回相加之后的结果. 代码如下: class Solution { public: string addBinary(string a, string b) { ;
