How to count lines of Java code using IntelliJ IDEA?
9 Answers
The Statistic plugin worked for me.
To install it from Intellij:
File - Settings - Plugins - Browse repositories... Find it on the list and double-click on it.
Access the 'statistic' toolbar via tabs in bottom left of project
OLDER VERSIONS: Open statistics window from:
View -> Tool Windows -> Statistic
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20The Statistic plugin works with IntelliJ IDEA 12, and even shows counts and percentages for comment lines and blank lines vs. total lines. Could use a bit more documentation. Launch it via new button that is installed in lower left corner of IntelliJ IDEA window. It has additional settings: File - Settings - (Project Settings) Statistic. Commented Jul 19, 2013 at 17:41
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1The Statistic plugin provides file counts in addition to line counts. I was unable to find file counts with the Metrics Reloaded plug-in.– JadeCommented Feb 26, 2014 at 13:08
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4Works on IDEA 2017.2.5, project > 150 kLOC, but does not group counts, no per module / per source folder sums --> mostly useless :-/– barfuinCommented Nov 9, 2017 at 12:16
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1This plugin doesn't work at all in 2018.1. The View -> Tool windows -> Stastistic just shows an empty window. Commented Sep 5, 2018 at 6:58
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5@YngvarKristiansen You have to do an initial refresh (top left corner) Commented Nov 15, 2018 at 17:19
Quick and dirty way is to do a global search for '\n'
. You can filter it any way you like on file extensions etc.
Ctrl-Shift-F -> Text to find = '\n'
-> Find.
Edit: And 'regular expression' has to be checked.
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3Yes, but this also searches through all the files that are in your libraries (ie: if you are creating a web application it looks through all the lines of JQuery for example)– somid3Commented Jul 10, 2012 at 14:41
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1Neat idea but only if you either trim all empty lines first or explicitly want them to be counted. Commented Sep 5, 2014 at 19:34
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3
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3Searching for regex ".+" works better. It wont miss the last line in the file if it's missing a trailing newline like "\n" or ".+\n" will. It also semantically matches what your searching for better, that is, lines with characters. Commented Jan 20, 2015 at 17:01
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5I cannot see the number of lines. It says "100+ matches in 3+ files" which isn't very helpful. I use IntelliJ IDEA Community 2019.2– QbyteCommented Nov 2, 2019 at 15:29
In the past I have used the excellently named MetricsReloaded plugin to get this information.
You can install it from the JetBrains repository.
Once installed, access via: Analyze -> Calculate Metrics...
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Agreed, documentation is needed. How does one activate the plugin once it is installed? Commented Mar 29, 2012 at 17:24
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4To answer my own question: Analyize -> Calculate Metrics Commented Jul 26, 2012 at 18:18
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Doesn't work with IntelliJ IDEA 12: github.com/BasLeijdekkers/MetricsReloaded/issues/19 Commented Jul 19, 2013 at 17:14
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Works in IDEA 12 now, not found in the repository you need to install via manually downloading. Commented Sep 18, 2013 at 15:36
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1
Although it is not an IntelliJ option, you could use a simple Bash command (if your operating system is Linux/Unix). Go to your source directory and type:
find . -type f -name '*.java' | xargs cat | wc -l
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1I would do
find . -type f -name '*.java' | xargs cat | wc -l
(quoting the*.java
part). Otherwise, the shell environment might expand the*.java
too early and the command won't work properly.– cdmckayCommented Oct 10, 2013 at 16:23 -
2This will return too many lines. Empty lines should not be counted Commented Dec 19, 2016 at 16:40
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5ignore blank lines:
find . -type f -name '*.java' | xargs cat | grep -ve '^\s*$' | wc -l
Commented May 21, 2019 at 15:51 -
Just like Neil said:
Ctrl-Shift-F -> Text to find =
'\n'
-> Find.
With only one improvement, if you enter "\n+"
, you can search for non-empty lines
If lines with only whitespace can be considered empty too, then you can use the regex "(\s*\n\s*)+"
to not count them.
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2This is really slow, use only if there's no better way. I recommend installing GitBash and using the
find
. Commented Mar 11, 2019 at 13:17
Statistic plugins works fine!
Here is a quick case:
- Ctrl+Shift+A and serach for "Statistic" to open the panel.
- You will see panel as the screenshot and then click
Refresh
for whole project or select your project or file andRefresh on selection
for only selection.
now 2 versions of metricsreloaded available. One supported on v9 and v10 isavailable here http://plugins.intellij.net/plugin/?idea&id=93
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Doesn't work with IntelliJ IDEA 12: github.com/BasLeijdekkers/MetricsReloaded/issues/19 Commented Jul 19, 2013 at 17:15
You can to use Count Lines of Code (CLOC)
On Settings
-> External Tools
add a new tool
- Name: Count Lines of Code
- Group: Statistics
- Program: path/to/cloc
- Parameters: $ProjectFileDir$ or $FileParentDir$
To find all including empty lines of code try @Neil's solution:
Open Find in Path (Ctrl+Shift+F)
Search for the following regular expression: \n'
For lines with at least one character use following expression:
(.+)\n
For lines with at least one word character or digit use following expression:
`(.*)([\w\d]+)(.*)\n`
Notice: But the last line of file is just counted if you have a line break after it.