How enable auto-format code for Intellij IDEA?

Question

Is it possible in Intellij IDEA after typing \';\' or press \'Enter\' happened formatting of this string?

For instance, to:

a+b=10;

Answer 1

File-> Settings -> Keymap-> Complete Current Statement

I added ; key in there. When typing ';' at the end of the line, it is auto-formatting.

UPDATE

I realized that this will cause some problems in some situations. Use Ctrl+Shift+Enter instead. This key can be used in any position of cursor in a line. It will add ; at the end of the line. Also this shortcut have some other useful features.

like:

public void someMethod()

after shortcut:

public void someMethod() {
    // The cursor is here
}

so formatting on inserting ; is not necessary.

Answer 2

Per the comment of Larson, this is now possible with the save-actions plugin.

Answer 3

Eclipse has an option to format automatically when saving the file. There is no option for this in IntelliJ although you can configure a macro for the Ctrl+S (Cmd+S on Mac) keys to format the code and save it.

Intellij reformat on file save