//Sample12_01.java

import java.io.File;

class Sample12_01{
    public static void main(String[] args){

        File file = new File("Sample11_02.class");
        long last = file.lastModified();
        System.out.println(last);
        String strDate = String.format(
              "%1$tY年%1$tm月%1$td日 %1$tH時%1$tM分%1$tS秒 %1$tLミリ秒",
              last);
        System.out.println(strDate);
    }
}