A Java Program to select random images from a large bucket of images.

MyProfilePicture

import java.awt.Image;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;

import org.apache.commons.io.FileUtils;

public class MyProfilePicture {
	public static int num;
	public static void main(String[] args) throws IOException
	{
		num=0;
		File dir = new File("/home/kartik/Desktop");
		SearchRecursively(dir); //Iterates on the given directory recursively
	}
	private static void SearchRecursively(File dir) throws IOException 
	{
        File[] files = dir.listFiles();
        for (File file : files) 
        {
			if (file.isDirectory()) 
			{
				SearchRecursively(file);  // Recursively calling SearchRecursively to iterate inside the given directory
			} 
			else  // If the file is not a directory
			{
                num++;
                try
                {
                	Image image=ImageIO.read(file);
                	if (image!=null) // checks if file is an image
                    {
                		if(num%10==0) // if the image index is a multiple of 10 then copy to a target directory 
                		{
                			String name = file.getName();
	    	                File Target = new File("/home/kartik/mosaic/"+name);
	    	                FileUtils.copyFile(file, Target);
	    	                System.out.println("File copied"+file.getName());
                		}
                    }      
	            } 
                catch(IOException e)
                {
	              	System.out.println("Same File encountered");
	            }
			}
		}
	}
}