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摘要: reference [1] http://www.cnblogs.com/IcanFixIt/p/7278696.html List, Set and Map 在Java语言中支持collection literals是非常需要的功能。 JDK 9替代了对collection literals的支持 阅读全文
posted @ 2018-05-21 06:12 小张的练习室 阅读(222) 评论(0) 推荐(0)
摘要: reference: [1] http://www.cnblogs.com/IcanFixIt/p/7278696.html 一. JDK and JRE 在 Java SE 9之前,JDK中: bin目录用于包含命令行开发和调试工具,如javac,jar和javadoc。 它还用于包含Java命令 阅读全文
posted @ 2018-05-21 05:35 小张的练习室 阅读(404) 评论(0) 推荐(0)
摘要: References [1] http://nvie.com/posts/a-successful-git-branching-model/ A golden git workflow: Branches feature/*: feature branches that are worked on 阅读全文
posted @ 2018-05-14 18:53 小张的练习室 阅读(121) 评论(0) 推荐(0)
摘要: Replication provides redundancy so that in case of hardware failure, the service is still available Replication provides redundancy so that in case of 阅读全文
posted @ 2018-05-02 17:14 小张的练习室 阅读(180) 评论(0) 推荐(0)
摘要: We need to add a prefix "prefix-" to <MsgId><Id> element in xml messages but there might be a new line between <MsgId> and <Id>. Example of the xml me 阅读全文
posted @ 2018-04-03 23:25 小张的练习室 阅读(185) 评论(0) 推荐(0)
摘要: mtime, atime and ctime are timestamps associated with the modification, access and change of any file respectively.mtimemtime (modification time) indi 阅读全文
posted @ 2018-03-27 00:25 小张的练习室 阅读(143) 评论(0) 推荐(0)
摘要: References [1] https://dzone.com/articles/how-analyze-java-thread-dumps The content of this article was originally written by Tae Jin Gu on the Cubrid 阅读全文
posted @ 2018-03-15 18:50 小张的练习室 阅读(290) 评论(0) 推荐(0)
摘要: 工作中发现一个有意思的bug。Jenkins上测试UTF-8 解码文件的unit test莫名其妙的fail了,之前一直跑的好好的我们也没有改动任何代码。相关代码如下: 经过排查发现removeBlankLines(InputStreamReader in)方法内部对InputStreamReade 阅读全文
posted @ 2018-03-12 21:38 小张的练习室 阅读(157) 评论(0) 推荐(0)
摘要: Try to inspect the memory leak in the following code: If a stack grows and then shrinks, the objects that were popped off the stack will not be garbag 阅读全文
posted @ 2018-02-14 07:39 小张的练习室 阅读(146) 评论(0) 推荐(0)
摘要: a &= b also means a = a & b true & true ==> true true & false ==> false false & true ==> false false & false ==> false true | true ==> true true | fal 阅读全文
posted @ 2018-01-23 06:56 小张的练习室 阅读(387) 评论(0) 推荐(0)
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