摘要:
List<String> list = new ArrayList<>();使用ArrayList对数据进行赋值,会出现不同线程争抢同一资源造成写入失败问题,会抛出异常“ConcurrentModificationException” List<String> list = new Vector<> 阅读全文
摘要:
lambda表达式 import java.util.concurrent.locks.Lock; import java.util.concurrent.locks.ReentrantLock; class Ticket{ private int ticket = 30; Lock lock = 阅读全文