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new File(url).lastModified() returns a long equal to the number of milliseconds since the epoch, which is GMT-based.
What is a simple way to convert this to a String representing system-local date/time?
If you really need to see an attempt from me here it is but it's a terrible mess and it's wrong anyway:
LocalDateTime.ofEpochSecond(new File(url).lastModified()/1000,0,ZoneOffset.UTC).atZone(ZoneId.of("UTC")).format(DateTimeFormatter.ofLocalizedDateTime(FormatStyle.LONG))
Beyond LocalDateTime I just have no idea how the time API works.
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The last modifying date of the file can get through Java using the File class of Java i.e File. LastModified() method. The File class is Java's representation of a file or directory pathname.
Using getlastmod() Function: The getlastmod() function is used to get the last modification time of the current page.
The lastModified() method of the File class returns the last modified time of the file/directory represented by the current File object. You can get the last modified time of a particular file using this method.
Call os. path. getmtime(path) to find the last modified time of a file at path . The time will be returned as a float giving the number of seconds since the epoch (the platform dependent point at which time starts).
To get the last modified time of a file, you should use Java NIO.2 API, which directly resolves your problem:
FileTime fileTime = Files.getLastModifiedTime(Paths.get(url));
System.out.println(fileTime); // will print date time in "YYYY-MM-DDThh:mm:ss[.s+]Z" format
If you want to access other properties (like last access time, creation time), you can read the basic attributes of a path with Files.readAttributes(path, BasicFileAttributes.class).
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