Scala interpreter load file

When you press the Tab key the first time, the REPL filters out many common methods, but by pressing the Tab key the second time, it removes those filters and increases the verbosity of its output. You can find an explanation of how this works at the JLineCompletion class link in the See Also section of this recipe. You can also limit the list of methods that are displayed by typing the first part of a method name and then pressing the Tab key.

To see methods available from the StringOps class, you currently have to do something like this:. Hopefully features like this will be added to future versions of the REPL. In the meantime, these are most easily seen in an IDE. I use the REPL to create many small experiments, and it also helps me understand some type conversions that Scala performs automatically.

A Tuple3 is a specific instance of a tuple. A tuple is a container for heterogeneous objects. A Tuple3 is simply a tuple that contains three elements. See Recipe If you need to set Java properties when starting the Scala interpreter, you can do so like this on Unix systems:. That command sets the maximum and initial size of the Java memory allocation pool. This seems to evaluate it one definition at a time, which doesn't work if the file has a sealed trait or forward references.

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