This class can meet the basic requirements, but if we put a class like this without thread safety protection into a multi-threaded environment, there will definitely be problems. How to solve them? The first thing we think of is adding the synchronized keyword to the getInstance method, as follows:
在一系列戏剧性的经历后，四人通过考试踏上了赴法的航船。同时，远在天津的周恩来拒绝了富贵娇妻的诱惑，虽因组织学生运动被捕，仍然不改出国追求真理的志向。先行抵法的邓希贤和同学们在巴耶中学开始了新奇而又艰苦的留法生活。
Keep the habit of making friends in a civilized way.
"Do you mean it has' blades' on both sides of its teeth?" I said.
The structure diagram of the singleton mode is as follows:
Depending on the profession you intend to enter, you can choose a single course, certificate certification, or diploma in a certain field, such as network or program. The best plan for learning is to weigh your strengths and weaknesses, and then purposefully find and choose schools. The second half of this series will introduce in detail how to choose IT schools.
说到这份上，何永强才拂袍落座，说起正事。
00后女儿拉上闺蜜想要来一场“诗与远方”的毕业“大冒险”。“古板”单身父亲携“好基友”一路隐秘尾随，中年护花小队“闪亮”登场。一场充满未知的欢笑之旅即刻启航！
汉军占领整个关中之后，刘邦的都城就迁到了咸阳。
Pan is infatuated with wine and meat, and his life returns to reality and cannot extricate himself from his blood type.
争得面红耳赤、口干舌燥之际，郑青木让人送了茶水点心进来，大伙儿便休战，歇息喝茶。
根据奥茨小说改编，安吉丽娜茱莉扮演了一位流浪女子，影片讲述了她与一群小镇女中学生的故事。四五个少女不满现况而团结起来，秘密基地就在郊野外的一间废弃屋。
Children. Add (node);
此剧讲述了31岁女漫画家重逢小时候的初恋出版社代表而发生的故事，主要刻画了30代的生活以及苦恼，感情故事。
In popular terms, it is to use network node resources such as IDC server, personal PC, mobile phone, smart device, printer, camera, etc. to launch a large number of attack requests on the target, which leads to waste of network resources, congestion of link bandwidth, depletion of server resources and interruption of service, making it impossible to provide normal services to the outside world, and only game over can be announced. The detailed description is shown in the following figure:
当此之时，刘邦正和众多诸侯宴饮，欢歌笑语不断。
什么事？陈启问道。
Opponents continue to use new inputs/payloads to detect classifiers in an attempt to evade detection. Such payloads are called antagonistic inputs because they are explicitly designed to bypass the classifier.
“文革”中，三个少不更事的红卫兵押解两个走资派走过冰河时，突然冰层开裂，身材高大的叫乔一龙的走资派将吴淮生拎到岸边，吴淮生返身救出另一个走资派郑重，而乔一龙却溺水而亡。
