RosettaCodeData/Task/File-modification-time/Kotlin/file-modification-time.kotlin

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// version 1.0.6
import java.io.File
fun main(args: Array<String>) {
val filePath = "input.txt" // or whatever
val file = File(filePath)
with (file) {
println("%tc".format(lastModified()))
// update to current time, say
setLastModified(System.currentTimeMillis())
println("%tc".format(lastModified()))
}
}