(Because the Scala language is also considered to be on the Java platform, it is thrown here. Recently, I saw a part of this series shared by fineqtbull on the JavaEye blog, and it is also shared here for the second time. It's all about learning Java and using Java, and seeing Scala is always harmless, after all, this is the language that is rumored to surpass Java. Take the opportunity to push a recently built Scala technology circle: g.51cto/scala welcome to sit~
ExcitedScala_7(1).pdf)