How to auto-format code in Eclipse?

434
votes

How do you auto-format code in Eclipse?

13
eclipseformattingformatcode-formatting
how did you post a question with meeting the "quality standards". for me, it is a very simple question. i just wanted to know how you did that – user4919188
It's a very simple question, but if it hasn't been answered yet then it is a question we need. So that when someone else has the same simple question they can come and find it here. – Sheldon
Will auto format applies to js files? – Navi

13 Answers

755
votes

On Windows and Linux : Ctrl + Shift + F

On Mac : ⌘ + ⇧ + F

(Alternatively you can press Format in Main Menu > Source)

197
votes

Another option is to go to Window->Preferences->Java->Editor->SaveActions and check the Format source code option. Then your source code will be formatted truly automatically each time you save it.

39
votes

CTRL + SHIFT + F will auto format your code (whether it is highlighted or non highlighted).

20
votes

This can also be done at the Project Level: In the Package Explorer, right-click on the project > Properties > Java Editor > Save Actions

This might be preferable when working as a team so that everyone's code is saved with the same format settings.

16
votes

Notice: It did not format the document unless I corrected all mistakes. Check your file before pressing CTRL + SHIFT + F.

12
votes

Windows -> Preferences -> Java -> Editor -> save actions -> Format source code -> Format Edited lines (or) format all lines.

Some time when you work as a team, lead don't want you to format all lines of the code in a source file (Huge track changes will be there on commit). So, select 'Format Edited lines'. This will edit and format only the lines you modified.

Gubs

12
votes

Press: Ctrl + A or highlight the part of the code you wish to indent and then press Ctrl + I.

11
votes

You can do with the steps below

  1. press Ctr + A (windows) or cmd + A (Mac os)

  2. Ctr + I in windows or cmd + I in Mac os

It will auto format your code

8
votes

The secret is simple: Ctrl+Shift+F

4
votes

Update your IDE with the latest PDT version for better code formatting. On the main menu click Help -> Install New Software and then add the following URL in the Work with field:

http://download.eclipse.org/tools/pdt/updates/4.0.1

When asked for the name, give it PDT4.0.1 and then move along with the update or install.

It will see if the appropriate PDT is already installed or if it is a lower version, which then would be updated.

After restarting or applying the changes go to Windows -> Preferences on the side bar and expand PHP -> Code Style. Here you will see an item named Formatter. Select it and choose the active profile for the code formating. Thats it.

The next time you format it, it will choose a format according to the chosen active profile.

Hope it helps.

4
votes

Also note that you can also "protect" a block from being formatted with @formatter:off and @formatter:on, avoiding a reformat on a comment for example, like in:

// Master dataframe
Dataset<Row> countyStateDf = df
    .withColumn(
        "countyState",
        split(df.col("label"), ", "));

// I could split the column in one operation if I wanted:
// @formatter:off
//    Dataset<Row> countyState0Df = df
//        .withColumn(
//            "state",
//            split(df.col("label"), ", ").getItem(1))
//        .withColumn(
//            "county",
//            split(df.col("label"), ", ").getItem(0));
// @formatter:on

countyStateDf.sample(.01).show(5, false);
4
votes

You can do this with
Ctrl + I

or

Ctrl + Shift + F

3
votes

right-click on the project > Properties > Java Editor > Save Actions