JAVA 字节流复制图片

package com.java.main;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class FileOutPutDemo1 {
    public static void main(String[] args) {
        try {
            FileInputStream fileInputStream = new FileInputStream("D:\\javaCode\\imooc\\acc.png");
            FileOutputStream fileOutputStream = new FileOutputStream("D:\\javaCode\\imooc\\accCP.png");
            int n = 0;
            byte[] b = new byte[1024];
            //读取文件放入字节数组中
            while ((n = fileInputStream.read(b)) != -1) {
                //将字节数组中的值写入新文件
                fileOutputStream.write(b,0,n);
            }
            fileInputStream.close();
            fileOutputStream.close();
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}