package com.itcast.demo02.InputStream;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;/** * @author newcityman * @date 2019/7/28 - 9:38 * 题目要求： * 使用输入流和输出流的知识，复制文件从源文件路径到目标路径 */public class Demo03InputStream {public static void main(String[] args) throws IOException {long l = System.currentTimeMillis(); FileInputStream fis = new FileInputStream("D:\\节日任务.docx"); FileOutputStream fos = new FileOutputStream("F:\\1.docx"); byte[] bytes = new byte[2048]; int len = 0; while((len=fis.read(bytes))!=-1){ fos.write(bytes,0,len); } fis.close(); fos.close(); long l1 = System.currentTimeMillis(); System.out.println("总耗时："+(l1-l)+"毫秒"); }}
转载于:https://www.cnblogs.com/newcityboy/p/11257882.html
