Here’s the shortcut keys to collapse all and expand all code folds in eclipse.
Collapse All: CTRL + SHIFT + NUM_PAD_DIVIDE (/)
Expand All: CTRL + SHIFT + NUM_PAD_MULTIPLE (*)
Note that both uses the divide(/) and multiply(*).
They are not the same as “the / which share the same key with ?” and “the * which you can get with shift+8