ANYONE GOOD AT RIPPING?

/*
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* and open the template in the editor.
*/

package tilesetripper;

import java.awt.*;
import java.awt.image.BufferedImage;

import javax.swing.JFrame;
import java.io.*;
import javax.imageio.*;

import java.util.*;

/**
*
* @author user
*/
public class Main {

/**
* @param args the command line arguments
*/
public static void main(String args) {
String s = "input.png";
int xDimension = 16;
int yDimension = 16;
int rows = 0;
int cols = 0;
Image image = null;
ArrayList<BufferedImage> tiles = new ArrayList<BufferedImage>();

if (args.length != 0) {
s = args;
xDimension = Integer.parseInt(args);
yDimension = Integer.parseInt(args);
}
try {
File file = new File(s);
image = ImageIO.read(file);
cols = image.getWidth(null) / xDimension;
rows = image.getHeight(null) / yDimension;
} catch (IOException ioe) {
System.out.println("Input file not found! Use input.png");
System.out.println("Or call 'TileSetRipper filename width height'");
}

BufferedImage buff = null;
Graphics2D g2 = null;

for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {

buff = new BufferedImage(xDimension, yDimension, BufferedImage.TYPE_INT_ARGB);
g2 = buff.createGraphics();

g2.drawImage(image, 0, 0, xDimension, yDimension, j * xDimension, i * yDimension, j * xDimension + xDimension, i * yDimension + yDimension, null);
boolean check = true;
boolean check2 = true;
for (int k = 0; k < tiles.size(); k++) {
check2 = false;
for (int n = 0; n < yDimension; n++) {
for (int m = 0; m < xDimension; m++) {
if (buff.getRGB(m, n) != tiles.get(k).getRGB(m, n))
check2 = true;
}
}
check = check && check2;
}
if (check)
tiles.add(buff);
}
}

buff = new BufferedImage(xDimension * cols, yDimension * rows, BufferedImage.TYPE_INT_ARGB);
g2 = buff.createGraphics();

int k = 0;
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
g2.drawImage(tiles.get(k), j * xDimension, i * yDimension, j * xDimension + xDimension, i * yDimension + yDimension, 0, 0, xDimension, yDimension, null);
k++;
if (k == tiles.size()) break;
}
if (k == tiles.size()) break;
}

try
{
ImageIO.write(buff, "png", new File("output.png"));
}
catch(IOException ioe)
{
System.out.println("Write error!");
}
}

}