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Java基础深化和提高-------IO流

IO流技术介绍什么是IO输入(Input)指的是：可以让程序从外部系统获得数据（核心含义是 “读”，读取外部数据）。输出(Output)指的是：程序输出数据给外部系统从而可以操作外部系统（核心含义是“写”，将数据写出到外部系统）。 java.io包为我们提供了相关的API，实现了对所有外部系统...

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Java基础知识第二讲：Java开发手册/JVM/集合框架/异常体系/Java反射/语法知识/Java IO

1、注解1.1、谈谈你对Java平台的理解？ “Java是解释执行”，这句话正确吗？谈谈你对Java平台的理解？（jdk7增加对switch的字符串支持 jdk8增加函数式编程）序号特点1Java本身是一种面向对象的语言，最显著的特性有两个方面，一是跨平台能力（分为编译期...

【JAVA基础】 IO详解

一、概述流是一组有顺序的，有起点和终点的字节集合，是对数据传输的总称或抽象。既数据在两个设备之间的传输称为流，流的本质是数据传输，根据数据传输特性将流抽象为各种类，方便更直观的进行数据操作。二、IO流的作用实现两个对象设备之间的数据传递。三、IO流的使用场景当我们使用File类时只能实现对文件的操作...

JAVA基础 IO流技术学习笔记 3

8.3.3 字符输出流package cn.it.bz.IO; import java.io.IOException; import java.io.PrintWriter; public class TestPrintWriter { public static void main(String[...

JAVA基础 IO流技术学习笔记 2

八、常用流详解8.1 文件字节流8.1.1 FileInputStream文件字节输入流FileInputStream通过字节的方式读取文件，适合读取所有类型的文件（图像、视频、文本文件等）。文件字节流是一个字节一个字节读取数据，如果数据源的编码方式和目的地的解码方式不同就会...

JAVA基础 IO流技术学习笔记 1

一、IO 流技术介绍1.1 什么是IO？输入(Input)指的是：可以让程序从外部系统获得数据（核心含义是“读”，读取外部数据）。输出(Output)指的是：程序输出数据给外部系统从而可以操作外部系统（核心含义是“写”，将数据写出到外部系统）。输入/输出流的划分是相对程...

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