This article will tell you how to install/uninstall multiple java versions on mac os both use homebrew or manually. It also shows you how to set JAVA_HOME & PATH system environment variable to make your installed JDK the default JDK. We recommend you use homebrew because it provides a lot of easy-to-use tools.
How To Install / Uninstall Multiple Java Versions In Mac OS By Home Brew Or Manually Read More »
Scala is based on java virtual machines, so if you want to learn scala programming, you need first install JDK, then install scala. This article will tell you how to install JDK and scala on both Ubuntu Linux, Windows, and macOS.
How To Install Java Jdk And Scala On Ubuntu Linux, Windows, MacOS Read More »
When I use SourceTree ( a git client tool ) to manage my source code, I meet a use case that there are both source codes that need to push and pull. One local repository committed code need to be pushed to the remote repository ( Bitbucket ), two remote committed code need to be
How To Resolve Git Push, Pull, Merge Conflicts In Bitbucket Use SourceTree Read More »
Apache James is a popular open-source mail server. It supports both SMTP, POP3, and IMAP protocols. This article will tell you how to install Apache James both on Windows and Linux, how to create a user account on it, and how to use the free email client tool Thunderbird to connect to it to send
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In my recent spring boot example project, I use spring boot data JPA to operate the MySQL server table. And when I invoke the CrudRepository‘s save method to implement insert action to the table, it shows below error, the error message is “table ‘dev2qa_example.hibernate_sequence’ doesn’t exist”. This error cost me some time to fix, and
Resolve Spring Boot JPA Table ‘dbname.hibernate_sequence’ Doesn’t Exist Error Read More »
When you develop a java project in eclipse, of course, you want to make class import automatically when you type a class name, especially when you copy & paste huge java source code to your java file. This article will tell you how to import java class automatically in eclipse.
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Group policy editor (gpedit.msc) is a very useful windows function that is needed when enabling the windows long file path feature. It has been installed and enabled in win 10 professional and enterprise editions by default. But when you run it in win 10 home edition, it will prompt an error message like Windows cannot
How To Enable Group Policy Editor ( gpedit.msc ) In Win 10 Home Edition Read More »
When you develop a java project using eclipse, you may find that the eclipse project runs so slowly, this can even stop your work, you can do nothing but wait for the eclipse project to build or download maven jar files to complete. Why is eclipse so slow when building a workspace? This article will
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Visual studio code is an open-source lightweight code editor provided by Microsoft. It can startup very quickly. It can support any coding language development and debug through its extension. There are so many extensions in the visual studio code marketplace. In single words, visual studio code is not a java IDE, but it can be
How To Create, Debug Java Project In Visual Studio Code Read More »
Yeoman is an open-source tool that can help you to create different project skeletons easily and quickly. It contains a yo command-line tool and a lot of structure/template generators to create different project file skeletons ( etc java project, spring boot project). This article will tell you how to use it to create a java
How To Use Yeoman To Scaffold Java Spring Project Read More »
