12.0. Introduction
When it comes to working with files, the scala.io.Source class and its companion object
offer some nice simplifications compared to Java. Not only does Source make it easy to open and read text files,
but it also makes it easy to accomplish other tasks, such as downloading
content from URLs, or substituting a String for a File, which is useful for testing. The Scala
Console class also simplifies console
interaction, letting you print to the console (command line) and read from
it very easily. In other cases, such as when reading a YAML file or
working with directories, you simply fall back to use existing Java
libraries.
Scala also makes it much easier to execute system commands. When it comes to interacting with system processes, the Scala API designers created a clean and familiar API to let you run external commands. This is useful for applications, and it’s terrific for scripts.
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