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  Can private method be overridden?

The private methods are not inherited by subclasses and you cannot be overridden by subclasses. According to Java Language Specification (8.4.8.3 Requirements in Overriding and Hiding), "Note that a private method cannot be hidden or overridden in the technical sense of those terms. This means that a subclass can declare a method with the same signature as a private method in one of its superclasses, and there is no requirement that the return type or throws&nb...

   Java,Private method,overridding,impossib     2011-10-06 03:57:14

  Top 10 Go Coding Traps and Tips

Go is currently the most common programming language in cloud development. Though I use it very much in my work, I am still repeating certain mistakes. This article is more a record of these errors, figuring out the causes and solutions so that people who read this article will save themselves time when coming across the same problems. Let’s cut through to the tips. Don’t rely on index var in the for loop The most common mistake we make is that we often create goroutine&nbs...

   TIPS,GOLANG,NIL INTERFACE     2021-07-03 23:45:51

  5 Things You Can Do to Protect Your Data

The average cost of a data breach is $148 per record. Records include everything from personal addresses to birthdates to even more sensitive data, like Social Security Numbers and business files. Each year, these hacks cumulatively cost billions of dollars to companies and individual users. Nonetheless, like many other criminals, hackers tend to prey on easy targets. By following these essential steps, you’ll be able to ensure your data is always kept safe. 1) Use a File Encryption Servic...

   DATA SECURITY     2019-08-20 08:35:54

  golangci-lint to enable comment check for exported functions

golangci-lint is a command line tool which aggregates a list of different go linters to check whether the source code is in correct condition from different aspects. It is built to run during the CI pipeline so that there is no obvious coding issues before compiling and building the program. It is easy to run it with just below command $ golangci-lint run -v INFO [config_reader] Config search paths: [./ /Users /] INFO [config_reader] Used config file .golangci.yml INFO [lintersdb] Active 10 li...

   EXPORTED COMMENT,GOLINT,REVIVE,GOLANGCI-LINT,GOLANG     2022-04-15 20:21:34

  Java Interview Questions

Currently there are many articles online which summarize the list of Java interview questions. Some cover lots of basic questions and some cover some specific questions in specific area such as multithreading. In this post, we will not cover the really basic questions, we will cover something different. For basic question, you can read Java Interview Questions。 Basic What is primitive data type? How many primitive data types in Java? What are they? -- A primitive type is prede...

   JAVA,SECURITY,INTERVIEW,CAREER,MULTITHREADING,QUESTION,JAVA INTERVIEW,JAVA CORE     2019-01-21 07:07:08

  Getting started with WTL on Visual Studio 2010

Now that you have downloaded the latest WTL release (v8.1 at the time of this writing), you will find out that it doesn’t have any project wizards for Visual Studio 2010. That’s a relatively easily fix. Just go ahead and download the latest build from the repository at AppWiz.tar.gz-view=tar. Extract the .tar file and you will find the JavaScript install scripts for VS 2010: I recommend you to extract the files to the same location were you installed the WTL files. In my ca...

   C++,Windows,WTL,VS2010,Configure     2012-02-25 09:32:31

  Two things I don’t like about Hacker News

Hacker News is a very famous IT information hub. We can find many useful links about the latest IT news and fantastic technology demos. But there are two things I don’t like about Hacker News. Maybe some of you also have the same feelings.1.  About the more link. Every time we click the more link to go to next page, there will be a unique key generated to produce the new page. It is a good security mechanism. Also it may increase pages views as we need to read page by page bu...

   Hacker news,More link,Submission,Security     2012-02-28 11:55:37

  JavaScript interview questions

This post will cover the JavaScript questions I have encountered and have seen during my programming career. They will mainly focus on vanilla JavaScript though there are lots of excellent frameworks out there and many people are using them in their daily work. this keyword this keyword is an very important but easy to confuse concept in JavaScript since it is always referring to the calling object of the function. 1. What will be the output of below code snippet? function User(name) { this....

   JAVASCRIPT,ALGORITHM,THIS,CLOSURE     2019-03-09 07:05:46

  Useful Bash Scripts

Many people hack together shell scripts quickly to do simple tasks, but these soon take on a life of their own. Unfortunately shell scripts are full of subtle effects which result in scripts failing in unusual ways. It's possible to write scripts which minimise these problems. In this article, I explain several techniques for writing robust bash scripts. Use set -u ...

   Linux,Shell,Bash,Command,Robust     2012-01-15 10:28:00

  Writing robust shellling scripts

Many people hack together shell scripts quickly to do simple tasks, but these soon take on a life of their own. Unfortunately shell scripts are full of subtle effects which result in scripts failing in unusual ways. It's possible to write scripts which minimise these problems. In this article, I explain several techniques for writing robust bash scripts. Use set -u ...

   Robust,Shell script,Set,Commands     2012-03-19 13:25:26

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