Oracle cloud provide an always free service for virtual machine, database and network creation & usage. It is a very good news because of free usage. This article will tell […]
When i install android sdk use android skd manager, i meet an Java.Lang.NoClassDefFoundError error like below. The error message said that javax.xml.bind.annotation.XmlSchema class can not be found. I struggle for […]
This article will tell you how to install / uninstall multiple java versions on mac os both use home brew or manually. It also show you how to set JAVA_HOME […]
Scala is based on java virtual machine, so if you want to learn scala programming, you need first install jdk, then install scala. This article will tell you how to […]
Apache James is a popular open source mail server. It support both SMTP, POP3 and IMAP protocol. This article will tell you how to install Apache James both on Windows […]
In my recent spring boot example project, i use spring boot data JPA to operate MySQL server table. And when i invoke the CrudRepository’s save method to implement insert action […]
When you develop 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 […]
Group policy editor (gpedit.msc) is a very useful windows function that are needed when enable windows long file path feature. It has been installed and enabled in win 10 professional […]
When you develop java project use eclipse, you may find that eclipse project run so slowly, this can even stop your work, you can do nothing but wait for eclipse […]
Visual studio code is an open source lightweight code editor provided by Microsoft. It is not a heavyweight IDE, it is just a platform and startup very quickly. But it […]
