In this article, we are going to show a way to determine file creation time in Java.
2. Read creation time using
Files.getAttribute(...) method from JDK7
From JDK 7 we can determine file creation time using
Let's check the first approach:
In this example, we make the use of
Files.getAttribute(...) method that takes file
Path and attribute name, which is in this case:
creationTime. The result type depends on the given attribute, so in our example, we need to cast return
FileTime class that holds timestamp value.
Note that if the filesystem doesn't hold creation time of the files method
Files.getAttribute(...) will return null.
3. Determine file creation time using
Reading all attributes using
Files.readAttributes(...) method is another way to get file creation time:
In this example we get
Files.readAttributes(...) method, and then get the attribute we are looking for:
This method is also an operating system dependent. When OS doesn't store file creation times it will return last modified time.
4. Read last modified time using File from
In JDK 6 we don't have dedicated API to determine file creation date straightforward. The best we can do here is to get the last modified time. Check the following example:
In this snippet, we create an instance of
File class and use
file.lastMofied() to get modified time as the timestamp.
In this article, we've learned how to get the file creation date in Java. We present two approaches from JDK 7 using
java.nio.Files class and one example from JDK 6. Unfortunately below JDK 7 we don't have dedicated API to determine file creation date but we can still get last modified time using old
As always, the code for examples is available over on GitHub.