Main2.java

package assets.kk.models.item;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;

public class Main2 {
	public static void main(String[] args)
	{
		final File folder = new File(".");
		
		File file = null;
		File tempFile = null;
		BufferedReader reader = null;
		BufferedWriter writer = null;
		
		for (final File fileEntry : folder.listFiles()) {
				//System.out.println(fileEntry.getName());
			file = new File(fileEntry.getName());
			if(file.getName().contains(".mtl"))
			{
				tempFile = new File("temp"+file.getName());
			
				try{
					System.out.println(file.getAbsolutePath());
				    reader = new BufferedReader(new FileReader(file));
				    writer = new BufferedWriter(new FileWriter(tempFile));
				    String text = null;
				    int times=0;
				    while ((text = reader.readLine()) != null)
				    {
				    	times++;
				    	
						if((text.startsWith("Ns")||text.startsWith("Ks")||text.startsWith("Ke")||text.startsWith("Ni")||text.startsWith("illum")||text.startsWith("map_d")))
						{
							System.out.println(times+": "+text.substring(0, text.indexOf(" "))+" found");
						}else{
						    writer.write(text + System.getProperty("line.separator"));
						    System.out.println(times+": Nothing");
		
						}
				    }
				} catch (FileNotFoundException e) {
				    e.printStackTrace();
				} catch (IOException e) {
				    e.printStackTrace();
				} finally {
					try {
				        if (reader != null) {
				        	writer.close(); 
				        	reader.close();
				        	//Delete the original file
				            if (!file.delete()) {
				              System.out.println("Could not delete file");
				              return;
				            }
		
				            //Rename the new file to the filename the original file had.
				            if (!tempFile.renameTo(file))
				              System.out.println("Could not rename file");
				        }
				    } catch (IOException e) {
				    	
				    }
				}
			}else if(file.getName().contains(".obj")){
				tempFile = new File("temp"+file.getName());
				
				try{
					System.out.println(file.getAbsolutePath());
				    reader = new BufferedReader(new FileReader(file));
				    writer = new BufferedWriter(new FileWriter(tempFile));
				    String text = null;
				    int times=0;
				    while ((text = reader.readLine()) != null)
				    {
				    	times++;
				    	
						if((text.startsWith("s")))
						{
							System.out.println(times+": "+text.substring(0, text.indexOf(" "))+" found");
						}else{
						    writer.write(text + System.getProperty("line.separator"));
						    System.out.println(times+": Nothing");
		
						}
				    }
				} catch (FileNotFoundException e) {
				    e.printStackTrace();
				} catch (IOException e) {
				    e.printStackTrace();
				} finally {
					try {
				        if (reader != null) {
				        	writer.close(); 
				        	reader.close();
				        	//Delete the original file
				            if (!file.delete()) {
				              System.out.println("Could not delete file");
				              return;
				            }
		
				            //Rename the new file to the filename the original file had.
				            if (!tempFile.renameTo(file))
				              System.out.println("Could not rename file");
				        }
				    } catch (IOException e) {
				    	
				    }
				}
			}
		}
		//Ns, Ke, Ni, illum, map_d
	}
	/*
	static void randomizador()
	{
		@SuppressWarnings("resource")
		Scanner reader = new Scanner(System.in);
		System.out.println("Hola bienvenido al randomizador");
		String[] users = new String[100];
		boolean seguir = true;
		System.out.println(users.length);
		System.out.println("Introduce todos los usuarios:");
		int vueltas = 0;
		while(seguir)
		{
			String input = reader.next();
			if(input.equals(".")){
				break;
			}
			else{
				users[vueltas] = input;
				vueltas++;
			}
		}
		shuffleArray(users);
		for(int i = 0; i< users.length; i++)
		{
			if(users[i] != null)
			System.out.println(users[i]);
		}
	}
	
	static void shuffleArray(String[] ar)
	{
		Random rnd = ThreadLocalRandom.current();
	    for (int i = ar.length - 1; i > 0; i--)
	    {
	      int index = rnd.nextInt(i + 1);
	      // Simple swap
	      String a = ar[index];
	      ar[index] = ar[i];
	      ar[i] = a;
	    }
	 }
	 */
}