How to get only 10 last modified files from directory using Java?

Question

i'm beginner and i found an old thread about lastmodified files in java. What i want is to get only 10 recent files from a directory and move them to another directory.

This code found in this forum is working well but it gets all files from a directory and sort them with date.

Any help will be aprreciated, thank you

Here is the code:

import java.io.File;
import java.util.Arrays;
import java.util.Comparator;


public class Newest {
    public static void main(String[] args) {
        File dir = new File("C:\\your\\dir");
        File [] files  = dir.listFiles();
        Arrays.sort(files, new Comparator(){
            public int compare(Object o1, Object o2) {
                return compare( (File)o1, (File)o2);
            }
            private int compare( File f1, File f2){
                long result = f2.lastModified() - f1.lastModified();
                if( result > 0 ){
                    return 1;
                } else if( result < 0 ){
                    return -1;
                } else {
                    return 0;
                }
            }
        });
        System.out.println( Arrays.asList(files ));
    }
}

---

i'm beginner here sorry if made some mistakes using the forum.

so for me i don't know how to insert the above in a new code.

And if i keep the first code, i would like to store the 10 recents files into another folder, i trie this but it puts all files in the directory.

any help please

Thank you

import java.io.File;
import java.util.Arrays;
import java.util.Comparator;
import java.io.*;
import java.text.*;
import java.util.*;




    public class Newest
    {
        public static void main(String[] args)
        {
            File dir = new File("c:\\File");
            File[] files = dir.listFiles();
            Arrays.sort(files, new Comparator<File>()
            {
                public int compare(File f1, File f2)
                {
                    return Long.valueOf(f2.lastModified()).compareTo
                            (
                            f1.lastModified());
                }
            });
            //System.out.println(Arrays.asList(files));
            for(int i=0, length=Math.min(files.length, 12); i<length; i++) {
        System.out.println(files[i]);


    for (File f : files) {
            System.out.println(f.getName() + " " + sdf.format(new Date(f.lastModified())));
            File dir = new File("c://Target");
            boolean success = f.renameTo(new File(dir,f.getName()));
            if (!success)


            }
        }
    } 

Answer 1

In your code example, change:

System.out.println( Arrays.asList(files ));

to:

for(int i=0, length=Math.min(files.length, 10); i<length; i++) {
    System.out.println(files[i]);
}