The Java command lastmodified() does not work in clojure

• Java

I tried to get the last modification time from the file in clojure by executing Java commands

My code is: (Java. Io. File. LastModified "/ home / lol / lolness. TXT")

My mistake is: Java lang.ClassNotFoundException：java. io. File. lastModified(NO_SOURCE_FILE：24)

(Java. Io. File. Separator) can work

Edited by: clojure version 1.2 0-master-snapshot openjdk 1.6 for Java 0

Solution

LastModified is Java io. A method of file object To access it in clojure, use the following syntax:

(.lastModified (java.io.File. "/home/lol/lolness.txt"))

Note that the namespace clojure contrib. java-utils(1.1)/ clojure. java. IO (bleeding edge) provides a function file to create Java io. File object is more convenient Because you are at the forefront, the following are useful to you:

(require '[clojure.java.io :as io])
(.lastModified (io/file "/home/lol/lolness.txt"))
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