文件复制

package com.neo.util;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class Fileutil {
    public static void main(String[] args) throws IOException {
        File filea = new File("e:"+File.separator+"test"+File.separator+args[0]);
        File file = new File("e:"+File.separator+"test"+File.separator+args[1]);
        OutputStream out=new FileOutputStream(file);
InputStream in=new FileInputStream(filea);
        byte[] b=new  byte[1024];
        int temp=0;
        while ((temp=in.read(b))!=-1) {
            out.write(b,0,temp);
        }
        in.close();
        out.close();
    }

}