达内java笔记，精挑细选（达内助教整理）1积分

目录 第一章Java 语言基础............................................................................................................... 9 JavaBasic Day01................................................................................................................. 9 1. Java 简介............................................................................................................... 9 2. Java APP................................................................................................................. 9 3. Java 的注释........................................................................................................... 9 Java 语言基础Day02.....................................................................................................10 1. Java 变量............................................................................................................. 10 2. 进制转换基础......................................................................................................10 3. Java 数据类型..................................................................................................... 11 4. 数据类型转换......................................................................................................13 Java 语言基础Day03.....................................................................................................13 1.Java 的方法.......................................................................................................... 13 2. Java 运算符......................................................................................................... 13 3. 分支流程控制......................................................................................................14 4. 循环控制..............................................................................................................15 Java 语言基础Day04.....................................................................................................16 1. while ......................................................................................................................16 2. for 循环................................................................................................................ 16 3. do ... while .............................................................................................................16 4. Java Array............................................................................................................. 16 5 数组的复制与动态扩展算法...............................................................................17 Java 语言基础Day05.....................................................................................................18 第二章java 核心..................................................................................................................... 21 Core Java Day01............................................................................................................... 21 1 面向对象(OO)...................................................................................................... 21 2 Java 类型, 引用变量与堆对象....................................................................... 21 3 构造器(构造方法) 的作用: 用来描述对象的创建过程的...............................22 4 对象的方法...........................................................................................................22 Core Java Day02............................................................................................................... 24 1 方法签名(方法的识别关键字)............................................................................ 24 2 java 方法参数的传递规则: 基于值的传递, 是变量值的复制,......................24 3 继承用来表达概念上具体化延续的具体概念.................................................24 4 关于继承中的构造器：.......................................................................................24 5 关于对象的实例化过程：...................................................................................25 6 访问控制修饰符...................................................................................................25 7 继承中的语法现象...............................................................................................26 8 引用类型转换（是引用变量的类型的转换！）...............................................26 Core Java Day03............................................................................................................... 27 1 Java Bean............................................................................................................... 27 2 static 静态关键字, 修饰: 属性, 方法, 内部类, 代码块................................ 27 3 final 最终的.......................................................................................................... 27 4 abstract class 抽象类--不具体的类......................................................................28 5 接口, 相当于纯抽象类(cpp 纯虚类).................................................................. 28 Core Java Day04............................................................................................................... 29 1 Object..................................................................................................................... 29 2 String 字符串........................................................................................................30 3 正则表达式: 负责的字符串匹配处理规则, 应用广泛.................................... 30 Core Java Day05............................................................................................................... 32 1 String 对正则表达式的支持.............................................................................33 2 StringBuilder 和StringBuffer..............................................................................33 3 线性表: List, 表示有先后次序的对象集合, 歌曲列表.................................... 33 4 线性表的应用.......................................................................................................33 5 Map........................................................................................................................ 34 Core Java Day06............................................................................................................... 35 1 散列表Map....................................................................................................... 35 2 HashMap(关键字:值), 关键字key 是唯一不重复的, 查找表.......................... 35 3 集合框架(Collection and Map, 集合与映射, 容器类(cpp))............................35 4 Java 泛型简介....................................................................................................... 35 5 集合的迭代(遍历算法)(模仿了数鸡蛋的方式)................................................. 35 6 Collections 集合的工具类, Arrays 数组的工具类............................................ 36 7 比较大小...............................................................................................................36 8 java 中的包装类.................................................................................................... 36 Core Java Day07............................................................................................................... 37 1 集合补遗...............................................................................................................37 2 内部类- 定义在类的内部的类， 根据位置分为4 类................................... 37 3 时间日期...............................................................................................................38 Core Java Day08............................................................................................................... 39 1 异常(Exception)....................................................................................................40 2 Java java.io.File 文件系统管理(pwd ls mkdir rm )......................................... 41 3 RandomAccessFile 操作文件内容, 访问文件任意位置................................... 41 Core Java Day09............................................................................................................. 42 1 RandomAccessFile 操作文件内容, 访问文件任意位置................................... 42 2 序列化与基本类型序列化....................................................................................43 3 IO 流(InputStream, OutputStream)..................................................................... 44 4 文件输入流FileInputStream 继承了InputStream.............................................44 5 文件输出流FileOutputStream 继承了OutputStream....................................... 44 6 DataOutputStream..................................................................................................44 7 DataInputStream.................................................................................................... 44 8 BufferedInputStream 和BufferedOutputStream................................................. 45 9 文件复制实现与优化............................................................................................45 10 字符串的序列化(文字的编码方案).................................................................. 45 Core Java Day10............................................................................................................... 46 1 字符串的序列化(文字的编码方案)..................................................................... 46 2 .utf-16be 编码方案............................................................................................... 46 3.UTF-8 编码方案...................................................................................................46 4.GBK 中国国标..................................................................................................... 46 5 认识文本和文本文件............................................................................................46 6 字符流(Reader Writer).......................................................................................... 46 7 对象的序列化.......................................................................................................47 8 浅层复制与深层复制............................................................................................47 9Java IO 总结.......................................................................................................... 47 10 流的过滤器..........................................................................................................48 11 Java 多线程编程................................................................................................ 48 12 Java 创建一个线程............................................................................................ 48 13 线程的状态.........................................................................................................48 14 线程状态管理:................................................................................................... 48 15 线程的常用属性.................................................................................................48 16 两种方式创建线程.............................................................................................49 17 Sleep 的打断唤醒...............................................................................................49 Core Java Day11............................................................................................................... 50 1.线程并发安全问题................................................................................................53 2. Java 中同步的API............................................................................................... 53 3.Vector 和Hashtable 是同步的...........................................................................53 4.Timer(定时器)使用(java.util.Timer).....................................................................53 5.Java Socket 编程TCP 协议编程........................................................................ 54 5. TCP 服务端编程(食堂).......................................................................................54 6. TCP 客户端编程................................................................................................. 54 7. Java 反射............................................................................................................. 54