scan and copy file to another folder

test.java

package com.zechster.yingzhun.ui;

import java.io.File;
import java.util.LinkedList;
import java.util.List;
import java.util.Queue;

import com.google.common.io.Files;

public class Test {

	public static void main(String[] args) {
		phase2();
	}
	
	public static void phase1(){
		try{
			File inFolder = new File("D://stickers");
			File outpuFolder = new File("D://stickers2");
			outpuFolder.mkdirs();
			List<File> allFile = new LinkedList<File>();
			
			
			List<File> queue = new LinkedList<File>();
			queue.add(inFolder);
			
			//scan
			while(queue.size()>0){
				File folder = queue.remove(0);
				for(File f:folder.listFiles()){
					if(f.isFile()){
						allFile.add(f);
					}else if(f.isDirectory()){
						queue.add(f);
					}
				}
			}
			int i=0;
			for(File file:allFile){
				String name = file.getName();
				try{
					Integer.parseInt(name);
					File outFile = new File(outpuFolder,i+".png");
					System.out.println(i+">>>"+file +" to "+outFile);
					Files.copy(file, outFile);
					i++;
				}catch(Exception x){
					
				}
				
			}
			
		}catch(Exception x){
			
		}
	}
	
	public static void phase2(){
		try{
			File inFolder = new File("D://stickers2");
			File outpuFolder = new File("D://stickers3");
			outpuFolder.mkdirs();
			List<File> allFile = new LinkedList<File>();
			
			
			List<File> queue = new LinkedList<File>();
			queue.add(inFolder);
			
			//scan
			while(queue.size()>0){
				File folder = queue.remove(0);
				for(File f:folder.listFiles()){
					if(f.isFile()){
						allFile.add(f);
					}else if(f.isDirectory()){
						queue.add(f);
					}
				}
			}
			int i=0;
			for(File file:allFile){
				try{
					File outFile = new File(outpuFolder,i+".png");
					System.out.println(i+">>>"+file +" to "+outFile);
					Files.copy(file, outFile);
					i++;
				}catch(Exception x){
					
				}
				
			}
			
		}catch(Exception x){
			
		}
	}

}