Java JFileChooser Filter listAll(File file, javax.swing.filechooser.FileFilter filter)

Description

list All

License

Open Source License

Declaration

public static File[] listAll(File file, javax.swing.filechooser.FileFilter filter) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.*;

import java.util.ArrayList;
import java.util.List;

public class Main {

    public static File[] listAll(File file, javax.swing.filechooser.FileFilter filter) {
        List<File> arrayList = new ArrayList<>();
        File[] files;/*w  w  w .  j  a v  a2s .  c om*/
        if (!file.exists() || file.isFile()) {
            return null;
        }
        list(arrayList, file, filter);
        files = new File[arrayList.size()];
        arrayList.toArray(files);
        return files;
    }

    private static void list(List<File> list, File file, javax.swing.filechooser.FileFilter filter) {
        if (filter.accept(file)) {
            list.add(file);
            if (file.isFile()) {
                return;
            }
        }
        if (file.isDirectory()) {
            File[] files = file.listFiles();
            for (File file1 : files != null ? files : new File[0]) {
                list(list, file1, filter);
            }
        }

    }
}

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