使用字节流拷贝一个文本文件 – java – 前端

import java.io.*; public class FileCopyDemo{public static void main(String[] args)throws IOException{ FlileInputStream read = new FileInputStream(new File("D:\1.txt"))

; FileOutputStream write = new FileOutputStream(new File("D:\copy.txt"))

; byte[] b = new byte[1024]; int len = 0; while((len=read.read(b))!=-1){ write(read,0,len)

; write.flush(); } write.close(); read.close();} }