Convert a file array to string array JAVA

Question

I need some help.

I use this code to get the files in a folder as an array .

String fileDir = Directorty;
File dir = new File(fileDir);
FileFilter fileFilter = new WildcardFileFilter("*.html");
files = dir.listFiles(fileFilter);

But I want to write a file with only the files in that folder and not the path. The result is:

[C:\Askeladden-17-12-2014\.html, C:\Askeladden-17-12-2014\barnetv.html, C:\Askeladden-17-12-2014\britiskebiler.html, C:\Askeladden-17-12-2014\danser.html, C:\Askeladden-17-12-2014\disipler.html, C:\Askeladden-17-12-2014\donald.html, C:\Askeladden-17-12-2014\ekvator.html, C:\Askeladden-17-12-2014\engelskspraak.html]

But I want to have it without the path

C:\Askeladden-17-12-2014\

I have been looking around the webs to find some answers, but no luck. Using this:

strFiles = Arrays.toString(files);

Gives a string presented as an array with [] in each end, and I am not able to get

strFiles.replace("C:\\Askleladden" + date +"\\", "");

to work.

AlexR · Accepted Answer · 2014-12-17 09:25:35Z

9

You have to iterate the files array and call getName() for each file:

String[] names = new String[files.length];
for (int i = 0; i < files.length; i++) {
   names[i] = files[i].getName();
}

answered Dec 17, 2014 at 9:25

AlexR

116k16 gold badges137 silver badges216 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

gkiko Over a year ago

You will soon get to the harsh reality of StackOverflow @KarlNorway

KarlNorway Over a year ago

@AlexR Its a figure of speache here in Norway. I know its not a trick but good coding ;)

Chenhai-胡晨海 · Accepted Answer · 2018-01-11 17:35:27Z

3

Java 1.8, if you want get as List, just remove cast and to array

String[] files = (String[])Arrays.asList(dir.listFiles(filefilter)) .stream().map(x->x.getName()) .collect(Collectors.toList()) .toArray();

answered Jan 11, 2018 at 17:35

Chenhai-胡晨海

1,4051 gold badge10 silver badges7 bronze badges

1 Comment

JAY Over a year ago

I get error when doing this. Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [Ljava.lang.String;

Shubhankar Raj · Accepted Answer · 2014-12-17 09:55:12Z

1

Please find the solution below with proper comments.

import java.io.File;
import java.io.FileFilter;
public class fileNames {
    public static void main(String args[]){
        //Get the Directory of the FOLDER
        String fileDir = "/MyData/StudyDocs/";
        // Save it in a File object 
        File dir = new File(fileDir);
        //FileFilter fileFilter = new WildcardFileFilter("*.html");
        //Capture the list of Files in the Array
        File[] files = dir.listFiles();
        for(int i = 0; i < files.length; i++){
            System.out.println(files[i].getName());
        }
    }
}

answered Dec 17, 2014 at 9:55

Shubhankar Raj

3091 silver badge10 bronze badges

Comments

Marv · Accepted Answer · 2014-12-17 09:25:58Z

0

Use Files getName() method:

File file = new File("myFolder/myFile.png");
System.out.println(file.getName()); //Prints out myFile.png

answered Dec 17, 2014 at 9:25

Marv

3,5572 gold badges27 silver badges49 bronze badges

1 Comment

KarlNorway Over a year ago

How will this work when there are several files in the folder.

Collectives™ on Stack Overflow

Convert a file array to string array JAVA

4 Answers 4

2 Comments

1 Comment

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

2 Comments

1 Comment

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related