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How To Use DrJava Interactions History (.hist) Files

Overview

History files are easy to use!
They can spare you from typing (or retyping) statements in to the interactions pane.
They are human-readable files that contain code to be run in the interactions pane.
They can be edited with any editor (Notepad, emacs, pico, etc.).

If you are given a .hist file:

Download it.
To execute the code one statement at a time:

Choose Tools -> Load Interactions History as Script
In the Interactions Pane, hit Next and Execute repeatedly.
That's it!

You can skip a statement (Next, Next), repeat it (Prev, Execute), or edit it (after Next, before Execute).
You can intersperse new statments with the scripted ones (by simply typing the new ones in to the interactions pane).
To execute all the script's statements in one shot:

Choose Tools -> Execute Interactions History

How to create your own .hist file:

Choose Tools -> Save Interactions History as Script
You will be given the option to edit the statements before saving them.
A handy option is Tools -> Clear Interactions History . Do this if you will eventually save interactions but you want to start with a clean slate (not save anything you've done so far).